The Pennsylvania Power and Light Building was designed by the New York architectural firm of Helme, Corbett, and Harrison. Wallace Harrison came to Allentown to design the building, which was a prototype for the art deco architecture of Rockefeller Center in New York City. The decorative friezes on the exterior of the building were designed by Alexander Archipenko. It was built between 1926-28 and was opened to the public on July 16, 1928. It has been illuminated at night since it was opened, and is visible from most parts of the Lehigh Valley.