Three Nationwide Plaza is a 408 ft (124 m) postmodern highrise building located at the address 3 Nationwide Plaza in Downtown Columbus, Ohio. The building is part of the larger multi-building complex known as Nationwide Plaza. Nationwide Plaza is the headquarters of Nationwide Mutual Insurance Company. Three Nationwide Plaza is the 10th tallest building in Columbus. Construction on the building finished in December 1988. The architect responsible was the NBBJ Group and the building design follows a postmodern style. The building was constructed for approximately $89 million and the main materials used were glass, steel, and precast concrete panels.