Qinghai Lake, China's largest saltwater lake, Qinghai Province, northwest China.

Poyang Lake, China's largest freshwater lake, Jiangxi Province, east China.

Ayding Lake, China's lowest-elevation point, Xinjiang Uygur Autonomous Region, northwest China.

Snow-capped mountains besides Mapam Yumtso, the world's highest freshwater lake, Xizang Autonomous Region, southwest China.

A glimpse of the Caspian Sea, the world's largest saltwater lake, Kazakhstan.

The north shore of Lake Superior, the world's largest freshwater lake, the U.S..

A view of the Dead Sea, the world's lowest-elevation point, Israel.

A view of the Lake Titicaca, the world's highest navigable lake, Bolivia.

A view of the Lake Baikal, the world's deepest lake, Russia.

A view of the Lake Tanganyika, the world's longest freshwater lake, Tanzania.