The Washington Monument with the U.S. Capitol building in the background, Washington D.C. (© Corbis Motion)

【February 20 2014】That imposing structure in the foreground is the Washington Monument, the tallest masonry structure in the world and also the world's tallest obelisk, stretching more than 555 feet into the air above the National Mall in Washington, D.C. The monument commemorates General George Washington, the nation's first president and founding father whose birthday we celebrate today. In the background stands the U.S. Capitol building. Explore breathtaking Gallery from the HuluTrip homepage over the past 5 years..