The Caspian Sea, spanning approximately 371,000 square kilometers, is the world's largest inland body of water, bordered by five countries. Lake Superior, covering about 82,100 square kilometers, is the largest freshwater lake by surface area, shared by the U.S. and Canada. Both lakes are vital for regional ecosystems and economies, offering unique natural habitats and resources. #CaspianSea #LakeSuperior #LargestLakes #NaturalWonders #Geography #Ecosystems #EnvironmentalChange #WaterBodies | Th