The Unto-an Buddhist Reliquary Tower, completed in 1978, stands as a remarkable example of contemporary sacred architecture in Shiotawa, Minamiuonuma County, Niigata Prefecture. Designed by the Suzuki Shun Architectural Design Office, this structure serves both as a functioning temple and exhibition space. The tower exemplifies the harmonious blend of traditional Buddhist spirituality with modern architectural principles. Its innovative design demonstrates how contemporary architects can reinterpret religious structures while maintaining spiritual significance. The building remains an important cultural landmark, hosting art projects and exhibitions alongside its primary religious functions, making it a compelling study for those interested in modern ecclesiastical architecture and its evolving role in contemporary society.