Washington Monument

The symbol of the city of Washington, DC, this 555-foot (169-meter) marble obelisk on the National Mall honors the nation's first president, George Washington. The cornerstone of the Washington Monument was laid in 1848, but it was fully constructed only in 1884. One can witness a visible change about one-third of the way up the obelisk marble—evidence of the onset of the Civil War. Construction was stalled during the war, and when the builders returned to the same quarry to complete the project afterward, enough time had passed to cause a significant change in the color. It is an emblem of the United States and an icon of the nation; the Washington Monument is a moving sight, its elegant form mirrored in the Reflecting Pool of the Lincoln Monument nearby.