The Washington Monument, a stone obelisk towering over the National Mall in Washington, DC, is a memorial honoring first U.S. President George Washington, Father of our Country. Designed by architect Robert Mills, this towering 555-foot 5 1⁄8-inch high monument constructed of marble, granite and gneiss is composed of over 36,000 stones. It is the world’s tallest, free-standing stone structure and the tallest building in Washington, DC.
Visitors can take an elevator to the 500-foot level to an indoor observation deck for a spectacular view of Washington, DC from all four sides. There’s a small museum on a floor below showing the monument’s history of construction.
Timed tickets are required to tour the monument. They can be obtained online in advance, or same-day tickets can be picked up in person on a first-come, first-served basis at the Washington Monument Lodge, which also contains restrooms and a small bookstore. The lodge is located at the bottom of the hill on 15th street. Visitors are required to go through a security screening. Check here for details.