Which architect was noted for their work on the German Pavilion at Expo '67?

Frei Otto is recognized for his work on the German Pavilion at Expo '67, where he exemplified innovative architectural techniques and principles. Otto was known for his pioneering use of lightweight structures, particularly in tensile designs that efficiently captured and distributed forces. His pavilion showcased these concepts, incorporating a remarkable roof structure that evoked the image of a flower, symbolically connecting with the themes of nature and culture present at the World Expo. This project demonstrated not only Otto's unique approach to architecture but also his emphasis on sustainability and harmony with the environment. His work at Expo '67 is celebrated for its artistic expression as well as its technical sophistication, cementing his legacy in the field of architecture.