Top 5 mysterious holes on our planet

Every so often, the earth opens up, collapses, or forms oddly, resulting in deep pits that even scientists find tough to explain.
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Forget clear blue waters, this remote island has giant lizard battles
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Animals Of Different Species Are Meeting As Humans Stay Home
The Paris-sized impact crater hiding in Greenland
The Paris-sized impact crater hiding in Greenland
Think dolls are cute? You won't after hiking this trail
Think dolls are cute? You won't after hiking this trail
The $5.5M floating mansion
The $5.5M floating mansion
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This slow-moving train is Vietnam's hottest travel attraction
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For $1,500, You Can Fly Underwater Through Maldives In Personal Submarine
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This Rooftop Infinity Pool Overlooks New York's JFK Airport Runway
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These 10 Animals Were Found Trapped In Amber For Millions Of Years
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UK Has A Bouncy Castle For Adults
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The world's biggest parking lot holds 4,000 U.S. military aircraft
Daily Escape: Giant pandas playing in Sichuan, China
Daily Escape: Giant pandas playing in Sichuan, China
A Man's Grave In Connecticut Is Covered With Dinosaur Tracks
A Man's Grave In Connecticut Is Covered With Dinosaur Tracks
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What happens when snake attacks frog embryos
America just opened its newest war veteran memorial and it's underwater
America just opened its newest war veteran memorial and it's underwater
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10 Greatest Unsolved Mysteries Of Our Universe
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This Bird Has Been Flying 8,000 Miles Every Year To Be With Handicapped Mate
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Daily Escape: Coastal city of Albufeira, Portugal
This Jurassic-age rock formation is so precious only 20 people are allowed to visit daily
This Jurassic-age rock formation is so precious only 20 people are allowed to visit daily