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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.

Seize the opportunity to see our government in action with a visit to the Supreme Court of the United States. The Neoclassical architecture of the building is stunning, and the outer spectacle of the Court is just the beginning. While the court term runs from October through June, you can actually sit in on an actual Court session. Seating is limited, however, so plan to arrive early at the Front Plaza if you want a seat. When the Court is not sitting, you can still take in a lecture or presentation every hour on the half hour.