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In St. Louis, Missouri, U.S., the 630-foot (190 m)-tall steel catenary Gateway Arch was completed.
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St. Louis
Independent city in Missouri, United States
St. Louis is an independent city in the U.S. state of Missouri. It lies near the confluence of the Mississippi and the Missouri rivers. In 2020, the city proper had a population of 301,578, while its metropolitan area, which extends into Illinois, had an estimated population of…Source: Wikipedia (CC BY-SA)
Catenary
Curve formed by a hanging chain
In physics and geometry, a catenary is the curve that an idealized hanging chain or cable assumes under its own weight when supported only at its ends in a uniform gravitational field.Source: Wikipedia (CC BY-SA)
Gateway Arch
U.S. National Historic Landmark in St. Louis, Missouri
The Gateway Arch is a 630-foot-tall (192 m) monument in St. Louis, Missouri, United States. Clad in stainless steel and built in the form of a weighted catenary arch, it is the world's tallest arch and Missouri's tallest accessible structure. Some sources consider it the tallest…Source: Wikipedia (CC BY-SA)