The Ronald Reagan Building and International Trade Center was designed to complete and augment the 70-acre wedge of government offices known as Federal Triangle. It occupies the last open site on Pennsylvania Avenue (a former parking lot two blocks from the White House) where construction was halted by the Depression. The building was designed to complement its historic context in materials and scale yet its architectural strategy is modern. It articulates structure and creates significant public spaces while fulfilling an extraordinarily rich mixed-use program of government offices, private businesses and public amenities. At 3.7 million s/f, the RRB/ITC is second only to the Pentagon as the largest federal building ever undertaken.