Gateway Arch Magnet

he Gateway Arch is a 630-foot monument in St. Louis, Missouri. Clad in stainless steel. It is the world's tallest arch,the tallest monument in the Western Hemisphere, and Missouri's tallest accessible building. 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 arch sits at the site of St. Louis' founding on the west bank of the Mississippi River.