The answer is Lake Baikal. Lake Baikal is located in Russia in the Siberia region. It is the largest lake in the world in terms of volume of fresh water. It is also estimated to be 25-30 million years old making it one of the oldest lakes in the world. The Dead sea is much more smaller in comparison, and while the Yangtze is one of the longest rivers in the world does not much the volume of Lake Baikal. Lake Taupo is located in New Zealand and one of the largest lakes in Oceania.
