O Salon

The National Building Museum presents several fascinating exhibits that cover architecture, construction and engineering. And while several of the country's most famous structures are spotlighted, the actual museum building itself is an exhibit in its own right. This amazing venue features massive columns, a picturesque fountain and a highly decorated ceiling that reaches 15 stories upward. Several interactive exhibits are part of the many highlights, including temporary exhibits that focus on the development of ghettos, roads, factories, parks and more. If it was built, the chances are its story is within the walls of this incredible museum.

One of the city's most stunning attractions is the Washington National Cathedral that began construction in 1907 and was not completed until 1990. Theodore Roosevelt was just one of the Presidents who oversaw the cathedral's construction, and every US President has attended services there. The structure is approximately one-tenth of a mile long and it contains more than 200 stained-glass windows that create a mesmerizing effect when the sun shines through. The observation gallery within the cathedral offers still more unbelievable vantage points, and there are regular tours that explain the architecture, history and the church's mission in further detail.

Buffalo Billiards is one of Washington, DC's favorite places to shoot some great pool. The regulation tables are strategically spread throughout the venue so that you can catch televised sporting events on any of the several screens throughout the place. In addition to darts, there's also a great menu of burgers, sandwiches and other munchies to enjoy as well as equally enticing selections from the fully-stocked bar.