Meramec Caverns is the most visited cave in the state of Missouri. It offers guided tours of the rarest, unusual and colorful formations in the world.
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Meramec Caverns is the most visited cave in the state of Missouri. It offers guided tours of the rarest, unusual and colorful formations in the world.
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The Gateway Arch is the tallest national monument in the United States that rises 630 feet high, designed by Finnish-American architect Eero Saarinen.
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