The Gateway Arch was designed by Finnish-American architect Eero Saarinen in 1947.

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Construction of Gateway Arch began on February 12, 1963, and was completed on October 28, 1965.

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The Gateway Arch monument opened to the public on June 10, 1967.

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To climb to the top of the arch by foot, you would have to take 1,076 steps where as the Willis Tower in Chicago take 2,109 steps.

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A small observation deck at the arch’s top was constructed having 65 feet long, 7 feet 2 inches across, and 6 feet 9 inches high.

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The observation area have 16 windows on each side.

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The observation deck hold up to 160 people at a time.

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The Gateway Arch weighs 43,220 pounds

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The cost to build the arch totaled 13 million dollars.

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A tram with 8 capsules on each leg of the arch was created.

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The tram takes approximately 4 minutes to get up to the to of the arch at a speed of 340 feet per minute.

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It is the world's tallest arch having 630 feet tall and 630 feet wide.

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