Koppers Tower was completed in 1929 and it has 34 floors. It rises 475 feet or 145 meters above Downtown Pittsburgh. Its address is Grant Street & Seventh Avenue. The structure is unique Art Deco built with Indiana limestone with a polished granite base and dark copper roof. Inside the Koppers Tower the lobby is richly decorated with marble walls. Its copper roof is pitched in a chateau-like design and is illuminated at night. The building was designed by the architectural firm of Graham, Anderson, Probst & White.