Young people visit the St. Louis Gateway Arch, 1966.

Set near the launching point of the Lewis and Clark Expedition, the arch was built as a monument to the western expansion of the United States under Thomas Jefferson. Its sleek, modern design was also seen by many to support St. Louis's attempt to re-position itself as a progressive, modern city for the future. The arch is the tallest free-standing arch in the world and was designed in 1947 by Finnish Architect, Eero Saarinen Submitted to the Vintage Photos Theme Park's "Futuristic" theme.