Anglų skaidrės. Natural Wonders. Great Barrier Reef, Australia. Australia’s Great Barrier Reef is considered to be the world's largest reef system. ,000 different fish species have been identified on the Great Barrier Reef. /27/. Grand Canyon, US. The Grand Canyon is found in the US state of Arizona. Victoria Falls, Zimbabwe and Zambia. In Africa, on the borders of Zimbabwe and Zambia. Thanks for watching!