Tallest monument

What to remember

Eero Saarinen designed the Gateway Arch back in 1947; it was completed in 1965 in St. Louis, Missouri. At 192 m, or 630 feet, it is the tallest monument in the world.

Clad in stainless steel, it takes the form of a weighted catenary arch. It is the tallest arch in the world and the tallest accessible structure in Missouri. It is commonly called "The Gateway to the West".

The monument celebrates the westward expansion of the United States and was officially dedicated to "the American people". It is a National Historic Landmark within Gateway Arch National Park and a widely recognised symbol of St. Louis. It stands on the west bank of the Mississippi, a few kilometres below its confluence with the Missouri, where St. Louis was founded in 1764.