Gateway Arch National Park, formerly known as the Jefferson National Expansion Memorial until 2018, is an national park located in St. Louis, Missouri, near the starting point of the Lewis and Clark Expedition. The Gateway Arch and its immediate surroundings were initially designated as a national memorial by Presidential executive order on December 21, 1935, and redesignated as a national park in 2018. The park is maintained by the National Park Service. The national park consists of the Gateway Arch, a steel catenary arch that has become the definitive icon of St. Louis; a 91-acre park along the Mississippi River on the site of the earliest buildings of the city; the Old Courthouse, a former state and federal courthouse where the Dred Scott case originated; and the 140,000 sq ft museum at the Gateway Arch. The Gateway Arch, known as the "Gateway to the West", is the tallest structure in Missouri. It was designed by Finnish-American architect Eero Saarinen and structural engineer Hannskarl Bandel in 1947 and built between 1963 and October 1965. It stands 630 feet tall and 630 feet wide at its base. The legs are 54 feet wide at the base, narrowing to 17 feet at the arch. There is a unique tram system to carry passengers to the observation room at the top of the arch.-Wikipedia
