at about the same time as the att building johnson and burgee completed other remarkable postmodern skyscrapers the bank of america center formerly republic bank center in houston  and the ppg place the headquarters of the pittsburgh plate glass company – both buildings combined modern materials construction and scale with suggestions of traditional architecture the forms of ppg place suggested the neogothic tower of the houses of parliament in london while the bank of america center appeared inspired on a colossal scale the stepped houses of flemish renaissance architecture