* <see name=National Building Museum alt= address=401 F St NW directions= phone=+1 202 272-2448 email= fax= url=http://nbm.org hours=M-Sa 10AM-5PM, Su 11AM-5PM price=Free, suggested donation $5>Located in the Pension Building, the building itself is a highly recommended for its architecture, with an expansive open interior space with massive columns.