1. Great barrier reef, Australia
Great barrier reef is the largest under water structure in the world. It contain more than 3000 individual reef systems. Great barrier reef is one of world heritage listed places and a greatest natural wonder on Earth.
Interesting Facts About The Great Barrier Reef
Great barrier reef is spread across 2600 kilometers by connecting 900 islands.
Bigger that that of Victoria Tasmania combined.
Great barrier reef can be seen from space.
Enriches by 1500 species of fish and more than 30 species of whale and dolphins.
Largest living under water system.