Gateway Arch
LocationUSA
Year1965
TypeMonument
About Gateway Arch
The tallest monument in the United States at 630 feet. Also the tallest arch in the world. Designed by Eero Saarinen as an inverted weighted catenary curve. Its width equals its height exactly. The stainless steel skin mirrors the changing sky. Trams climb inside both legs to the observation deck. A monument to westward expansion.
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