Visit for Two or Four to the National Building Museum (Up to 47% Off)

It’s only fitting that a museum devoted to architecture is itself housed in a formidable structure. The National Building Museum's 19th-century edifice greets visitors with somber Union soldiers sculpted into the exterior’s 1,200-foot frieze. Corinthian columns 75 feet high and built with 70,000 bricks lead into the cavernous Great Hall, which soars up to 159 feet in height and captures the echo of groups as they follow the color-coded banners towards exhibits devoted to American and international architecture, engineering, and design. Drawing on hands-on children’s toys, drawings, photographs, and models, the exhibits delve into everything from the history of the American home to the evolution of building blocks and other architectural toys.