Completion of Gateway Arch

Date: October 28, 1965 • Location: City of Saint Louis, United States

In St. Louis, Missouri, U.S., the 630-foot (190 m)-tall steel catenary Gateway Arch was completed.

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 over 2.8 million. It is the largest metropolitan area in Missouri and the second-largest in Illinois. The city's metropolitan statistical area is the 23rd-largest in the United States.