Where is the world's longest freshwater lake?
Africa's Lake Tanganyika, which lies primarily on the border of the Democratic Republic of the Congo and Tanzania, is the world's longest freshwater lake. It is approximately 420 miles (676 kilometers) long but it is very thin - it's between 10 and 45 miles (16 to 72 km) wide.Lake Tanganyika is the world's second deepest lake with a maximum depth of 4,710 feet (1,435 meters).

