The Yokohama Port Opening Archives Museum, completed in 1981, stands as a significant modernist structure designed by the Urabe Architectural Office. Located on Nihon Odori in Yokohama's Naka ward, this museum and archives facility represents an important example of contemporary Japanese institutional architecture. The building's design thoughtfully integrates its historical context, commemorating Yokohama's role as one of Japan's first international ports. With its clean lines and functional approach characteristic of the period, the structure successfully balances aesthetic sophistication with practical museum operations, making it an essential reference for understanding late 20th century Japanese architectural practice.