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What are the top 10 most visited national parks?
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1. Yellowstone National Park, Wyoming, USA
2. Grand Canyon National Park, Arizona, USA
3. Great Smoky Mountains National Park, Tennessee and North Carolina, USA
4. Yosemite National Park, California, USA
5. Rocky Mountain National Park, Colorado, USA
6. Glacier National Park, Montana, USA
7. Sequoia and Kings Canyon National Park, California, USA
8. Great Barrier Reef Marine Park, Queensland, Australia
9. Zion National Park, Utah, USA
10. Great Bear Rainforest, British Columbia, Canada