Thayer Building

Historical marker location:

818 Broadway Boulevard, Kansas City, Missouri

( Marker is at the intersection of 9th Street and Broadway Boulevard, on the right when traveling west on 9th Street.)

1883. Architect: Walter C. Root.

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.