Award: “Historic landmark of civil engineering” for the tent roof of the Olympic Stadium

Building design
The listed marquee roof of Munich's Olympic Stadium is today recognized as a historic landmark of engineering architecture in Germany. Photo: www.bayika.de

The listed marquee roof of Munich's Olympic Stadium is today recognized as a historic landmark of engineering architecture in Germany. Photo: www.bayika.de

Last Friday afternoon, September 22, 2023, the listed tent roof of the Munich Olympic Stadium (Frei Otto) was awarded the title of Historic Landmark of Civil Engineering. With this title, the Federal Chamber of Engineers, together with the Bavarian Chamber of Civil Engineers, honors historically significant engineering structures

Last Friday afternoon, September 22, 2023, the listed tent roof of the Munich Olympic Stadium (Frei Otto) was awarded the title of Historic Landmark of Civil Engineering. With this title, the Federal Chamber of Engineers, together with the Bavarian Chamber of Civil Engineers, honors historically significant engineering structures

Last Friday afternoon, September 22, 2023, the listed tent roof of the Munich Olympic Stadium (Frei Otto) was awarded the title of Historic Landmark of Civil Engineering. With this title, the Federal Chamber of Engineers, together with the Bavarian Chamber of Civil Engineers, honors historically significant engineering structures

On September 22, 2023, the tent roof of the Munich Olympic Stadium was awarded the title “Historic Landmark of Civil Engineering”. Together with the Federal Chamber of Engineers, the Bavarian Chamber of Civil Engineers hosted the award ceremony and unveiling of the plaque for this engineering masterpiece.

Since 2007, the Federal Chamber of Engineers has honored historically significant engineering structures throughout Germany with the title “Historic Landmark of Civil Engineering in Germany”. This is supported by the Federal Ministry of Housing, Urban Development and Building (BMWSB), the engineering chambers of the federal states and the non-profit association “Historic Landmarks of Civil Engineering in Germany”. In 2023, this honor will be bestowed on the roof of the Olympic Stadium in Munich. The award will be accompanied by the ceremonial unveiling of an honorary plaque on the building.

Bavaria’s Minister of Construction Christian Bernreiter, Munich City Planning Councillor Prof. Dr. (Univ. Florenz) Elisabeth Merk as well as the President of the Bavarian Chamber of Civil Engineers, Prof. Dr. Norbert Gebbeken, and the President of the Federal Chamber of Engineers, Dr. Heinrich Bökamp, unveiled the plaque together. Dipl.-Ing. (FH) Günter Mayr, one of the engineers responsible for the project, reported on the planning phase at the end of the 1960s / beginning of the 1970s. The Bavarian Monument Preservation Prize 2024 was also awarded. The ceremony began at 1 p.m. in the Coubertin in the Olympic Park. The ceremonial unveiling of the plaque took place at 2 p.m. between the Olympic Hall and the Olympic Swimming Pool.

“I am delighted that this award makes the outstanding engineering achievements that made this unique tent roof possible visible to everyone,” said a delighted Prof. Dr. Norbert Gebbeken, President of the Bavarian Chamber of Civil Engineers. Dr. Heinrich Bökamp, President of the Federal Chamber of Engineers, praised the close integration of architecture and engineering: “This building is still a role model today. The interplay of design and technology as well as the cooperation with the trades make the tent roof an enduring symbol of German engineering.”

Construction Minister Bernreiter has a special connection to the tent roof construction due to his original profession: “As a steel construction and welding engineer, I greatly admire the tent roof of the Olympic Stadium. Together with the Olympic Park, it gives the city of Munich a unique face and is of great value to the citizens. Every year, tourists from all over the world come to visit this characteristic place with its unique effect. The fact that the unique engineering architecture is now being specially honored is absolutely deserved.” Munich City Planning Councillor Prof. Dr. (Univ. Florenz) Elisabeth Merk said: “The transparent tent roof of the Olympic site stands for permeability and lightness. It was created as a symbol of democracy. A landmark whose ingenious architecture and engineering embodies the built philosophy of building culture.”

Completed for the 1972 Olympic Games in Munich, the tent roof of the Olympic Stadium is still a defining feature of civil engineering today. State-of-the-art technology, largely developed specifically for this construction project, was used in its construction. The numerous developments from this period later set the trend for the construction of roofs and bridges. These include, for example, the earth anchors, the stretchable, high-precision, prefabricated cable net and the first major use of CAD. The knowledge gained from the construction of the tent roof was processed and further researched. In collaboration with the engineering firms involved, a separate research department was set up at the University of Stuttgart, which has enjoyed worldwide recognition ever since. The innovative spirit and courage of that time still serve as a role model for many engineers today.

The Olympic Stadium with its tent roof construction is embedded in the Olympic Park, which is now set to become a UNESCO World Heritage Site. The core area of the Olympic Park in particular, with its sports facilities, is one of the most important documents of 20th century European building culture. The Olympic Stadium by Behnisch & Partner with Frei Otto’s tent roof construction, which spans parts of the stadium, the Olympic swimming pool and the Olympic Hall, is one of the rare avant-garde projects in the architectural history of Munich. The Olympic Park was built for the 1972 Olympic Games on a pile of rubble from the Second World War. The structural design was complemented by the Olympic graphic design by Otl Aicher, one of the founders of the renowned Ulm School of Design. The color scheme and thus the modern corporate design symbolized the basic values of democracy and the Olympic spirit in 1972. The guiding idea for the landscape architecture of the Olympic Park came from Günther Grzimek, who implemented his vision of the user park at the Olympic Park in 1972. From the very beginning, the park’s users were to take ownership of the park, the lawn and the areas – another expression of democratic design that visitors still fill with life today, because the Volkspark is a park for all Munich residents and their visitors.

On March 19, 1998, the Bavarian State Office for the Preservation of Monuments added the Olympic Park as an ensemble as well as the Olympic Stadium, the Olympic Hall, the Olympic Swimming Pool, the TV Tower and the Ecumenical Church Center of the Olympic Village to the list of monuments.The fact that the Olympic Park and its buildings should apply for inclusion in the UNESCO World Heritage List has long been the subject of public debate. Munich’s former mayor Hans-Jochen Vogel (1926-2020) was a big supporter of this. He brought the Olympic Games to Munich and later became the patron of the association “Aktion Welterbe Olympiapark e.V.”. In 2017, experts from urban planning, politics and relevant organizations discussed what the UNESCO World Heritage title would mean for Munich.

The City Council approved the application for the Olympic Park to become a UNESCO World Heritage Site and commissioned the Department of Urban Planning and Building Regulations to prepare the application process. The preliminary application of the Olympic Park as a UNESCO World Heritage Site (including the tentative list) was submitted in August 2020. However, there is a long way to go before the title is awarded: the application process starts at municipal, state and federal level. The UNESCO proposal list will not open again until 2024, as other applications from all over the world have to be processed before then.

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Renaissance II – Painting and Sculpture

Building design
"The Creation of Adam" is one of the most outstanding works of art from the Renaissance. Photo: Public domain, via Wikimedia Commons
The Creation of Adam is one of the most outstanding works of art from the Renaissance. Photo: Public domain, via: Wikimedia Commons

The Renaissance marked an era of profound intellectual and artistic renewal. In painting and sculpture, artists discovered humanity as the measure of all things—as physical, thinking, and feeling beings. At the intersection of science and spirituality, an art emerged that united beauty, knowledge, and human dignity in an unprecedented way.

The Renaissance revolutionized painting and sculpture by placing the human being—in all their physical, intellectual, and emotional dimensions—at the center. Artists such as Leonardo da Vinci, Michelangelo, and Raphael combined anatomical studies, mathematical perspective, and nuanced lighting to create a new, realistic visual language. This article examines key works of the Renaissance and demonstrates how the observation of nature, humanism, and scientific thought led to a new perspective on humanity.

The Transformation of the Concept of Art

With the Renaissance, a profound and downright revolutionary transformation began in the visual arts. Artists no longer sought pure symbolism or idealized transcendence, but rather a convincing naturalism, a three-dimensional perspective, and a depiction of the human figure that appeared both idealized and individual. Painting and sculpture served not merely aesthetic purposes but were vehicles for humanism, religious consciousness, philosophical thought, and social ideals. Art became a mirror of humanity’s newly discovered self-awareness, as humanity came to see itself as the measure of all things.

Michelangelo: Embodied Ideals and Divine Order

Michelangelo Buonarroti (1475–1564) is regarded as the epitome of the Renaissance artist, who set new standards in painting, sculpture, and architecture alike. With his famous “David”(1501–1504, Florence, Galleria dell’Accademia), he created far more than just a statue—he created a symbol of human strength, intellectual greatness, and republican self-confidence. The sculpture combines consummate anatomical precision with inner tension, serenity, and heroic dignity. It embodies the ideal of the “uomo universale”—the well-rounded and self-determined individual who experiences body and mind in harmonious unity.
In the ceiling frescoes of the Sistine Chapel (1508–1512, Rome), Michelangelo combined painting and sculpture in an overwhelming theological and artistic program. Scenes from Genesis—such as the famous “Creation of Adam”—depict the dynamic, almost electric relationship between God and humankind. The figures appear sculpturally modeled, their bodily volume emphasized by sculptural lighting. In his later “Last Judgment” (1536–1541), Michelangelo elevates this vision to a dramatic level: movement, emotion, and spiritual awe permeate the entire pictorial field.

Leonardo da Vinci: Art as the Science of Seeing

Leonardo da Vinci (1452–1519) was not only an outstanding artist but also a researcher, inventor, and anatomist. He understood painting as a science of seeing and knowledge. His meticulous studies of muscles, bones, and proportions formed the basis for a depiction of the human body grounded in observation and knowledge. The famous “Vitruvian Man” (c. 1490, Venice) follows the rules of proportion established by the ancient architect Vitruvius and symbolizes the harmony between humanity, nature, and the cosmos—an emblem of universal order. In “The Last Supper” (1495–1498, Santa Maria delle Grazie, Milan), Leonardo perfected central perspective and created a previously unmatched unity of space, light, and gesture. Each figure reacts individually to Christ’s words—doubt, fear, faith, and realization are reflected in their faces. This transforms the biblical event into a deeply human, even psychologically tangible scene that draws the viewer directly into the drama.

Raphael: Humanism and Classical Harmony

Raffaello Santi (1483–1520) gave Renaissance humanism a new, harmonious form. In his famous “School of Athens” (1509–1511, Apostolic Palace, Vatican), art, philosophy, and architecture merge into an ideal image of intellectual order. The symmetrical composition, clearly structured and masterfully constructed in perspective, depicts the great philosophers of antiquity—Plato, Aristotle, and others—as embodiments of human thought and inquiry. This fresco is regarded as an allegory of knowledge, education, and reason. In his depictions of the Madonna as well, such as the “Madonna di Foligno” (1511–1512), Raphael combined spiritual sublimity with human warmth. Mary appears as a loving mother, yet at the same time as a symbol of divine purity and beauty. This combination of naturalness and idealism made Raphael’s works the epitome of classical harmony.

Masaccio: Pioneer of the Early Renaissance

Masaccio (1401–1428) is considered one of the key pioneers of the Early Renaissance. With his “Trinità”(1425–1428, Santa Maria Novella, Florence), he laid the foundation for the development of perspective painting. Through mathematically constructed architecture and realistic lighting, he created the impression of spatial depth and physical presence. Masaccio’s work marked the definitive departure from the two-dimensional style of the Middle Ages and the transition to a rational, three-dimensional understanding of the image.

Portraiture and Individualization

The Renaissance marked the beginning of a conscious shift toward the individual portrayal of people. The portrait became an expression of personal identity and social status. It not only depicted physical resemblance but was also intended to reflect rank, education, and character. Nobles, scholars, and wealthy citizens—as seen, for example, in the portraits by Leonardo, Raphael, or Hans Holbein the Younger—presented themselves as thoughtful, self-assured individuals. The portrait thus became a medium for self-awareness and the representation of a new image of humanity.

Technique, Materials, and Innovation

The technical achievements of the Renaissance also contributed significantly to its success. The development of oil painting, particularly in Northern Italy by artists such as Antonello da Messina, allowed for softer transitions, finer nuances, and greater atmospheric depth. Fresco and tempera techniques were further refined to realize monumental, narratively complex projects. In sculpture, bronze and marble allowed for a precise rendering of movement, texture, and anatomy—from Donatello’s youthful “David”toMichelangelo’s powerful monumentality.

Art Between Humanism, Religion, and Science

Renaissance art uniquely unites three spheres: humanism, theology, and the natural sciences. The depiction of the human figure became a form of insight—an expression of divine order as well as a sign of intellectual curiosity. Anatomy, perspective, and light were regarded as means for the search for truth and the attainment of spiritual perfection. For today’s art historians and conservators, the challenge remains to understand these works not only technically, but also ideologically and philosophically.
Renaissance painting and sculpture fundamentally transformed European art. Masters such as Michelangelo, Leonardo, Raphael, and Masaccio combined scientific thought, theological reflection, and aesthetic sensibility into a new unity. Human beings took center stage in artistic representation—as physical, intellectual, and moral beings. The ideals of the Renaissance, characterized by harmony, knowledge, and creative freedom, continue to shape the Western understanding of beauty and art to this day.

Rakotzbrücke freshly restored

Building design
Rakotz Bridge

Rakotz Bridge

One of Lusatia’s most famous landmarks has been freshly renovated. The spectacular bridge structure is a highlight in the Azalea and Rhododendron Park in the east of Saxony.

One of Lusatia’s most famous landmarks has been freshly renovated. After years of renovation, the Rakotzbrücke is shining again. The spectacular bridge structure is an important highlight in the large azalea and rhododendron park in the east of Saxony.

The small village of Kromlauhas just over 300 inhabitants . Nevertheless, it can be seen in many photos. To be more precise, it is not the village that is the subject of the photos. Rather, it is the spectacular Rakotzbrücke bridge that fascinates. It is located in the middle of the large azalea and rhododendron park. The striking arch of this stone bridge is breathtaking. Today more than ever. After years of restoration, the bridge is once again visible.

Kromlau is a district of Gablenz in the district of Görlitz. Hardly anyone would know the village if it wasn’t home to the largest rhododendron park in Germany. It attracts many plant lovers. But many are also drawn there because it is home to the famous Rakotzbrücke bridge. The Kromlau Azalea and Rhododendron Park covers around 200 hectares. This large landscape park is the largest rhododendron park in Germany. Visitors do not have to pay admission. The Rakotzbrücke bridge and other stone sculptures are also accessible at all times.

Did you know? The park and flower festival has been held in the Kromlau Azalea and Rhododenron Park since 1965. Well over 30,000 visitors come to the annual festival, which takes place at Whitsun. By comparison, only just over 300 people live in Kromlau itself.

The beginnings at Gut Kromlau

A contemporary of the famous Hermann Ludwig Heinrich Prince von Pückler-Muskau acquired the Kromlau estate in 1842. Shortly afterwards, he began planting the first native and exotic trees and shrubs. He was also known as the little Pückler. As such, he spared no expense. He had ponds created on almost 800 acres and hills heaped up, which he crowned with oak trees. Rare trees and shrubs, mythological and rococo statues and basalt grottoes were created. The famous arch of the Rakotz Bridge is also one of them. It is made of boulders and basalt stone. The lord of the manor had this material brought in from various quarries in Saxon Switzerland and Bohemia. Ox carts mastered the transportation.

New owners, new activities

Friedrich Herrmann Rötschke exchanged the Kromlau estate with its Rakotzbrücke bridge for other building plots some 30 years after acquiring it. In the years that followed, ownership changed hands several times. It was not until 1889 that peace returned. Count von und zu Egloffstein-Arklitten acquired the site. He commissioned the horticultural inspector Georg Eichler to maintain the grounds. He added rhododendrons and azaleas to the existing trees and shrubs. Planted on a large scale, they contributed to the harmonious appearance of the park. The garden designer also planted certain flower varieties for sale. These generated welcome additional income. These in turn benefited the further development of the park. After the Second World War, the landscape park with the famous Rakotzbrücke bridge became public property. It was not until the mid-1960s that it received renewed attention. The park was once again maintained and reconstructed. The Rakotzbrücke bridge remained a special attraction.

You can see more impressions of the bridge in this video.

The Rakotz Bridge

Alongside Kromlau Castle, the Rakotz Bridge is one of the most important structures in the park. Its stone arch is unusually round. When its semicircle is reflected in the lake, a perfect circle appears in the water. Built from basalt and fieldstone, the bridge spans the Rakotzsee lake below over a length of 35 meters. Although numerous hiking trails cross the park, the bridge may no longer be entered.

Did you know? Only when the water level in the Rakotzsee is right does the reflection on the surface of the water complete the Rakotzbrücke into a perfect full circle. To prevent the water from gradually seeping into the ground, the lake bed was sealed with bentonite sealing sheets during the bridge renovation.

Rakotz Bridge equals Devil’s Bridge

The roots of the village of Kromlau lie in the Sorbian language. It is therefore not surprising that the name of the bridge is of Sorbian origin. Rakotz means crab in the Sorbian language. This is why the Rakotz Bridge is also known as the Devil’s Bridge. People used to believe that only the horned Beelzebub could build such a filigree bridge arch. Today, the bridge attracts photographers from all over the world. The photos usually also include the sculpture behind the bridge, the organ. The Rakotzbrücke’s reflective round arch made its biggest appearance in the fairytale film “The Sorcerer’s Apprentice”.

Renovation of the Rakotzbrücke

The municipality of Gablenz is now the owner of the landscape park. In 2018, it was awarded funding from various federal, state of Saxony and EU programs. Since then, a lot has changed at the Rakotzbrücke bridge and in the rhododendron park. Various types of construction work have been carried out. In addition to the renovation of the Rakotzbrücke bridge, a group of basalt columns and the grotto between the Rakotzbrücke bridge and the flight of steps, which collapsed in 1956, were also renovated. The repairs have now been completed. The construction fence has been removed and the associated lake has also been filled with water again. The scaffolding around the Rakotzbrücke bridge was removed in November 2020. After the bridge was renovated, the lake was sealed. Because only a constant water level can bring out the mirror effect perfectly.

Did you know? The renovation of the Rakotzbrücke bridge initially went according to plan, but had to be interrupted due to an unexpected visitor. Two protected bat species, the greater mouse-eared bat and the pug bat, were hibernating in their hiding places on the bridge, which is why the renovation was suspended for a few months so as not to disturb the animals.

In addition to the famous Rakotzbrücke bridge, other sculptures have been given a new lease of life. The Richterstuhl stone group and the historic bridge on the island pond in the west of the park have also been renovated. Although it was not possible to hold a park festival in early summer 2021 due to the coronavirus, many visitors came to the reopening of the park. The entire park was upgraded over a total of four years. This includes 8.5 kilometers of park paths. Forgotten paths around the island pond were also rebuilt. A fountain ensures that the pond is filled with water again. The new Asian Bridge is now reflected here. New plants have also been planted. The main parking lot at the entrance to Kromlau has been given an information point with public toilets. This important cultural site has now been secured for the coming decades.

Fancy another bridge? Let us show you one of the longest pedestrian suspension bridges in the world – the “Arouca 516” in the Arouca Geopark.