Top 10 Greatest Natural Caves in the World 

10. Painted Cave, California

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9. Fingal’s Cave, Scotland

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8. Caverns of Sonora, Texas

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7. Cave of Swallows, Mexico

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6. Waitomo Glow-worm Caves, New Zealand

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5. Antelope Canyon, American Southwest

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4. Marble Caves, Chile-Argentina

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3. Caves of Algarve, Portugal

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2. Ice Cave near Mutnovsky Volcano, Russia

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1. Son Doong Cave, Vietnam

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