QUIZ: Can You Tell Us What These States Are Known For?
In which state will you find the world’s longest cave system?

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Mammoth Cave, the namesake of Mammoth Cave National Park, snakes 426 miles underneath south-central Kentucky, making it the longest cave system in the world. Today, the national park is a UNESCO World Heritage Site, International Biosphere Reserve, and International Dark Sky Park.
A.V. Oldham/Library of Congress/Corbis/VCG via Getty Images
A.V. Oldham/Library of Congress/Corbis/VCG via Getty Images
In which state will you find the world’s longest cave system?
- Alaska
- Kentucky
- Colorado
- Pennsylvania
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