5- Great Barrier Reef Australia-ThinkstockPhotos-533909522_0.jpg

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The only living thing that can be seen from outer space, The Great Barrier Reef, is set off Australia’s east coast and sprawls out over 133,000 square miles. It is larger than the Great Wall of China. The lavishness of the reef’s marine life makes for breathtaking views. Bright blue waters and white sand beaches are the norm for Australia’s Whitsunday Islands. The area is made up of 74 individual islands that TripAdvisor describes as “mini paradises.”