What is picture of st louis arch?

The St. Louis Arch is also known as the Gateway Arch and is a 630-foot monument located in St. Louis, Missouri, United States. The arch is made of stainless steel and was built as a symbol of the westward expansion of the United States. The Gateway Arch was designed by Finnish-American architect Eero Saarinen and was completed in 1965. The arch is the world's tallest arch, and visitors can take a tram to the top to see views of the surrounding area. The arch is also a national monument and is managed by the National Park Service.