The deepest lake in the world is Lake Baikal, located in Siberia, Russia. It reaches a maximum depth of approximately 1,642 meters (5,387 feet), making it not only the deepest but also one of the oldest and largest freshwater lakes by volume. Lake Baikal is a UNESCO World Heritage Site and is known for its unique biodiversity, including species such as the Baikal seal. The lake is also significant for its clear waters, which give it a stunning blue color, making it a natural wonder.