Question: What is the largest lake in the world?
Answer: Yes! The Capian Sea is a Lake! It was called a sea and not a lake because the Romans found it salty, especially in the southern reaches, and the name just stuck. The Caspian Sea is the largest lake on earth by both volume (about 5521 cubic miles of water) and surface area (143,200 square miles). The Caspian Sea is surrounded by Russia, Azerbaijan, Iran, Turkmenistan, and Kazakhstan.