The Mud Volcanoes of Azerbaijan, the Bay of Fundy and Poland's Lake District: Which gets your vote to be part of the Seven Wonders of the Natural World?

Other sites on the shortlist include the Galapagos islands, the Great Barrier Reef, Kilimanjaro, the Matterhorn, Jeju — a volcanic island off Korea — and the Sundarbans delta, the largest mangrove forest in the world at the mouth of the Ganges. Established international landmarks such as the Grand Canyon, the Amazon and the Great Barrier…

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