Situated in south-east Siberia, the 3.15-million-ha Lake Baikal is the oldest (25 million years) and deepest (1,700 m) lake in the world. It contains 20% of the world's total unfrozen freshwater reserve.
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With 23,615.39 km3 (5,670 cu mi) of water, Lake Baikal is the world's largest freshwater lake by volume, containing 22–23% of the world's fresh surface water, more than all of the North American Great Lakes combined.
Lake Ladoga, Russian Ladozhskoye Ozero or Ladozhskoe Ozero, largest lake in Europe, located in northwestern Russia about 25 miles (40 km) east of St. Petersburg.
Located in North America on the border between the United States and Canada, Lake Superior is the world's largest freshwater lake by surface area (82100 km2). The volume of Lake Superior surpasses that of all the other Great Lakes combined.
Lake Annecy, FranceLocated in the Haute-Savoie department, which borders Italy and Switzerland, Lake Annecy is a pristine body of water that's often called the cleanest lake in Europe, thanks to strict environmental regulations set in place in the 1960s.
Annecy. Regarded as the clearest lake in Europe, Annecy is home to a picturesque town of the same name – sometimes also known as Venice of the Alps due to its numerous water canals.