Sophia University Building 10 is a striking example of late modernist architecture completed in 1982. Designed through a prestigious collaboration between the Chicago-based Skidmore, Owings and Merrill and Japan's Nikken Sekkei, this structure seamlessly integrates theater and performance spaces with university facilities. Located in the Kioi-cho district of Chiyoda, Tokyo, the building demonstrates refined International Style principles while adapting thoughtfully to its urban context. The design reflects SOM's characteristic clarity and functionality, combined with Nikken Sekkei's sophisticated understanding of Japanese spatial organization. This landmark continues to serve as an important cultural and educational venue, exemplifying how ambitious architectural collaboration can create enduring institutional buildings.