What is the Jewel of Syberia?

Question

What is the Jewel of Syberia?

Answer 1

Where is Syberia?  Never heard of the place.

Answer 2

Lake Baikal is cherished by Russians as the "Jewel of Siberia", because of its beauty and clarity. Baikal is more like an inland sea than lake, with the world's only species of freshwater seals, a complex system of self-purification and hot water vents that nurture life in the deep.

Lake Baikal is the world’s oldest lake believed to be between 25 and 50 MILLION years old (by contrast the second oldest lake in China is only 5 million years old and Lake Tahoe is a mere 10,000 years old.) Lake Baikal is also the largest lake with 20% of the world’s fresh water supply (more than the water in all the Great Lakes combined). 335 rivers feed into the Lake and one drains out of it, Angara River. Some of the most beautiful landscapes in Russia surround the Lake. 70% of species found in the Region are found nowhere else in the world including nerpa, a freshwater seal.