The Gateway Arch (Symbols of American Freedom)

As the country grew, settlers pushed westward across the Mississippi River to claim land and begin new lives. From Lewis and Clark's famed expedition to the uncharted western lands to the trials faced by early pioneers, The Gateway Archillustrates the persevering spirit of the Americans exploring the western frontier. The tallest national monument at 630 feet, the Gateway Arch, constructed in St. Louis, Missouri, in the 1960s, symbolizes how the city served as a meeting area, resting place, and starting point for thousands of settlers during the 19th century.