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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.

Aside from the White House, the United States Capitol building is the most visited building in Washington. This incredible building with its regal dome and classic architecture symbolizes democracy to everyone who sees it. The view from the front steps is like nothing else, so make sure you have your camera with you. Tours are available at the kiosk on the southwest side of the Capitol, and are free of charge, on a first-come, first-served basis. Plan to get there early, as there are always plenty of people in line for this extremely popular attraction.

Getting into the Eighteenth Street Lounge may require getting past the very selective velvet rope. This premier nightlife venue doesn't just let anyone in, as it is a favorite haunt of the city's elite politicos, culture vultures and even the occasional celebrity. Once you do make it inside, you'll enjoy the cool, lounge atmosphere and superbly stocked bar. There are occasional live shows, DJs and various theme nights on the weekly calendar that are all worth checking out.