The Grant Building is 40-story, 147.8 m (485 ft) skyscraper at 310 Grant Street in downtown Pittsburgh, Pennsylvania. The building was completed and opened on February 1, 1929 at a cost of $5.5 million ($75.5 million today). The art deco building's facade is built with Belgian granite, limestone, and brick. It was famous for a radio antenna that rose roughly 100–150 feet from the roof of the tower which had an aviation beacon that spelled out .--. .. - - ... -... ..- .-. --. ....