The Museum of Westward Expansion, located below the Arch, is as large as a football field and contains an extensive collection of artifacts, mounted animal specimens, an authentic American Indian tipi, and an overview of the Lewis and Clark expedition. Located just two blocks west of the Arch, the Old Courthouse is one of the oldest standing buildings in St. Louis, begun in 1839. It was here that the first two trials of the Dred Scott case were held in 1847 and1850. Today, the building houses a museum charting the history of the city of St. Louis and restored courtrooms. Visitation Over 4 million people visited Jefferson National Expansion Memorial in 1999.
Admission is free.
Hours of operation are 8 am - 5 pm. Hours of operation are 8 am - 10 pm. Directions Jefferson National Expansion Memorial is located in the heart of downtown St. Louis on the Mississippi River. Parking is available in the Arch Parking Garage on the north end of the park grounds on Washington Street, or at privately run surface lots and garages nearby. The Arch Parking Garage has a seven foot height restriction.