biggest lake in the world wikipedia
Solving the world's problems. . . one answer at a time. The Caspian Sea is the largest lake in the world at 143,244 square miles. Though it is saltwater, it is land-locked. The largest freshwater lake in the world is Lake Superior at 31,700 square miles. Lake Baical in Russia has the largest freshwater volume in the world at 23,600 km3 (5,700 cu mi), and is also the deepest at 5,370 ft.