One Million

Historical marker location:

700 Clark Avenue, Saint Louis, Missouri

( Marker is on South 8th Street south of Clark Avenue, on the right when traveling north.)

September 29, 1946. Greatest Moments

The Gateway Arch, located in St. Louis, is the tallest arch in the world, standing 630 feet tall. It was built as a monument to the westward expansion of the United States and opened to the public in 1967.