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The gateway arch in st louis was builtin 1965. It is the tallest monument in the

2 Answers

4 votes

Answer:

St. Louis, Missouri, United States.

Explanation:

it is the world's tallest arch, the tallest man-made monument in the Western Hemisphere

User Radzio
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3 votes
In the United States!
User Stefan Koenen
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5.6k points