GATEWAYARCH
Gateway Arch
The Gateway Arch is a high monument in St. Louis, in the U.S. state of Missouri. Clad in stainless steel and built in the form of a flattened catenary arch, it is the tallest man-made monument in the United States, Missouri's tallest accessible building, and the world's tallest arch. Built as a monument to the westward expansion of the United States, it is the centerpiece of the Jefferson National Expansion Memorial and has become an internationally famous symbol of St. Louis.The above text is a snippet from Wikipedia: Gateway Arch
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