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20 record-breaking natural wonders around the world

INSIDER Logo By cfox@businessinsider.com (Caroline Fox) of INSIDER | Slide 2 of 21: Located off the northeastern coast of Australia, the Great Barrier Reef is 1,260 miles long, making it the world's largest coral reef system and one of the seven natural wonders of the world. The Great Barrier Reef is actually composed of 3,000 individual reef systems and home to hundreds of tropical islands. To put the size into perspective, the reef is the only living thing visible from space and is larger than the Great Wall of China. 

The Great Barrier Reef in Australia is the world's largest coral reef system.

Located off the northeastern coast of Australia, the Great Barrier Reef is 1,260 miles long, making it the world's largest coral reef system and one of the seven natural wonders of the world. 

The Great Barrier Reef is actually composed of 3,000 individual reef systems and home to hundreds of tropical islands. 

To put the size into perspective, the reef is the only living thing visible from space and is larger than the Great Wall of China. 

© Mike Hutchings/Reuters

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