Washington Monument is to commemorate the first United States President George Washington, built from the start in 1848 until 1884 before completion. It is located in downtown Washington, the Capitol, Lincoln Memorial on the axis, is a marble obelisk, 169 meters high, its interior walls are inlaid with 188 by the private sector, groups and donors around the world to commemorate the stone, in which a piece of carved Chinese is donated by the Qing government. It is a carpet of green grass around the large lawn, where the regular meetings and processions will be held. There are 50 monumentslayer, there are 70 seconds to the top of the high-speed elevators, visitors can view the top Washington, DC, Maryland and Virginia scenery.