Though the Library of Congress doesn't own every book ever published, it sure has most of them, with 532 miles of shelves and 115 million items, with 7,000 added each working day.

Prominent 555-foot-high classical obelisk where visitors are whisked by elevator to an observation deck for spectacular views of America's capital.

This Gothic-style cathedral is the sixth largest in the world and is put to all sorts of national purposes, such as President Wilsons funeral and a prayer vigil for American hostages during the Iranian crisis.

This outdoor memorial is the most popular of presidential memorials, in large part because of its elegant design, which includes waterfalls and sculptures.

A truly green spectacle, with a jungle, a National Garden with a First Ladies water garden, a rose garden and exhibits on ecology and evolutionary biology.

National Park Service Website: http://www.nps.go... Contains opening hours

Website: http://www.suprem...  Visiting hours: 9:00 a.m. to 4:30 p.m. Monday through Friday. Closed Saturdays, Sundays, and federal holidays. Lectures in the Courtroom are given every hour on the...

For information on setting up a White House tour or the logistics (what you can’t bring on the tour etc.) The tour itself lasts about 20 - 45 minutes. You enter the Executive Mansion from East...

The magnificent domed edifice is both a grand symbol for and the working seat of the United States government .

The office building where the Watergate scandal led to the downfall of President Nixon.

Major train station and tourist attraction with many shops and restaurants.