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Today in History: Gateway Arch Completed: St. Louis Welcomes New Landmark

10/28/2025

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Summary

Story summary

On October 28, 1965, the Gateway Arch, a 630-foot-tall monument in St. Louis, Missouri, was completed. Designed as a weighted catenary arch, it symbolizes westward expansion in the United States. The Arch, now a National Historic Landmark, stands as the tallest arch in the world and a prominent tourist attraction.

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Story summary

On October 28, 1965, the Gateway Arch, a 630-foot-tall monument in St. Louis, Missouri, was completed. Designed as a weighted catenary arch, it symbolizes westward expansion in the United States. The Arch, now a National Historic Landmark, stands as the tallest arch in the world and a prominent tourist attraction.