National Park Service
NHL Second Place Winner
St Louis, Missouri
Photographer: Marla Jordon
Reaching 630 feet in height, the Gateway Arch is the tallest monument in the United States.
Modernist architect Eero Saarinen based his complicated 1947 design on an inverted catenary, the
shape that a chain takes when held by the two ends. When the monument was later constructed
between 1963 and 1968, the unique structural system had never been attempted on such a large
scale. Towering over downtown Saint Louis and the Mississippi River, the shining stainless steel
arch symbolizes the gateway to the West. The Gateway Arch is now open to the public as part of
the Jefferson National Expansion Memorial administered by the National Park Service.
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