Washington Monument

To celebrate President’s Day in the United States, here is the Washington Monument — an obelisk located on the National Mall in Washington, D.C. Standing 554 feet 7 11/32 inches (169.046 m) tall, the structure was built to commemorate George Washington, the first U.S. President. It was completed in 1885; is made out of marble, granite, and bluestone gneiss; and is the world's tallest predominantly stone structure.

38.889469°, -77.035258°

NASA HQ PHOTO via Flickr