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Indus
Mekong
Yangtze
Yellow
Alps
Himalayas
Ural
Andes
Dead Sea
Caspian Sea
Tibetan Plateau
Halong Bay
Strait of Magellan
Bering Strait
Bosporus Strait
Strait of Gibraltar
11
23
48
57
Russia and Georgia
China and Mongolia
Kazakhstan and Kyrgyzstan
Nepal and India
Red Sea
Gulf of Aden
Persian Gulf
Caspian Sea
15%
37%
60%
75%
Lake Superior
Lake Baikal
Lake Bled
Lake Victoria
Taiwan, Laos, and Philippines
Indonesia, Malaysia, and Brunei
Singapore, Brunei, and Taiwan
Philippines, Indonesia, Malaysia
10 questions remaining