Lake Baikal, the deepest freshwater lake in the world, is located in Russia. Found in Siberia, Lake Baikal reaches depths of over 5,300 feet and is renowned for its incredible biodiversity, containing unique species such as the Baikal seal. It is also one of the oldest lakes, estimated to be around 25 million years old. The surrounding region is characterized by stunning natural landscapes, including mountains and forests. Lake Baikal is recognized as a UNESCO World Heritage Site, highlighting its ecological and cultural significance.