Washington, D.C., is full of monuments and memorials. They honor special people and events in U.S. history.
5:12 · American History
The Washington Monument is 555 feet and 5-1/8 inches tall. It’s the tallest masonry (stone, brick, or concrete) structure on Earth. It’s also Washington’s only skyscraper. Work began on it in 1848 with private funding, but the money ran out in 1860.