In addition to the Gateway Arch, the Jefferson Expansion Memorial includes the Museum of Westward Expansion and the Old Courthouse of St. Louis, where two of the famous Dred Scott slavery cases were heard in the 1860s.
Today, some 4 million people visit the park each year to wander its nearly 100 acres, soak up some history and take in the breathtaking views from Saarinen’s gleaming arch.