Iguazu or the Iguassu Falls are located on the borders of Brazil and Argentina. The Falls was discovered in 1541 by the Spanish conquistador Álvar Núñez Cabeza de Vaca and rediscovered by Boselli in the 19th century.

The Victoria Falls is named after Queen Victoria after David Livingstone, a Scottish explorer, discovered it in 1855. Situated between Zambia and Zimbabwe on the Zambezi River, the Victoria Falls is one of the greatest waterfalls of the world. The Falls can be seen from 40 miles away.

Located in the Coral Sea, to the Australian North Eastern coast, lies the Great Barrier Reef. The reefs form as a mixture of underwater sands, rock or corals. The Great Barrier is the largest reef in the whole universe. Its size is 2000 kilometers in the Pacific Ocean.