The American landmark known as the "Gateway to the West" is the Gateway Arch in St. Louis, Missouri. This iconic stainless steel monument stands at 630 feet tall and was completed in 1965. It symbolizes westward expansion in the United States, commemorating the role of St. Louis as a departure point for pioneers heading west in the 19th century. The Gateway Arch is part of the Jefferson National Expansion Memorial and features a visitor center below, with an elevator that takes visitors to the top for stunning views of the city and the Mississippi River.