The Caspian Sea: The world's largest inland body

Named after an ancient tribe called the Caspii and really a lake not a sea, the Caspian Sea has no outlets but loses a lot of water to evaporation. Its water is salty. The Volga River flows into the northern Caspian Sea and is the source of 80 percent of its water. The level of the Caspian Sea rises and falls with the flow of the Volga River, with the level at its highest in the spring after the river swells from the spring melt.