The National Archives is the repository of America's most precious documents -the Declaration of Independence and the U.S. Constitution, including the Bill of Rights. National Zoo 3000 block of Connecticut Ave. A favorite of locals as well as visitors, the National Zoo is a neatly kept expanse of walkways, imaginatively designed animal enclosures and research facilities. Pentagon Located across the 14th Street Bridge in Virginia. U.S. Capitol Located at the East End of the Mall.
Entrance is from the East-side main steps.
One of Washington's most visited sights, the Memorial depicts the names of the 58,156 Americans who died or remain missing in action in Vietnam. White House 1600 Pennsylvania Ave. However, the tours are sometimes stopped earlier because of an official event. The Visitors Center houses numerous exhibits and videos about the White House. The National Park Service recommends spending 20 - 90 minutes at the Visitors Center before the tour to enhance understanding and enjoyment of the White House tour.