U.S. Geography

What Iowa fort was the first of its kind, built to protect one Native American group from another?

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What state lies directly south of North Dakota?
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What Kentucky attraction is the world's longest cave?
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Which state is nicknamed the "Cornhusker State"?
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Which of these states is not landlocked?
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Where is the Kennedy Center for the Performing Arts located?
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Which famous female outlaw is buried in Oklahoma?
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Which edifice in Salt Lake City took 40 years to complete?
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What hit animated TV series is base in a fictional town in Rhode Island?
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