Discover the Oldest Lake on Earth, Lake Baikal, which has existed for 25 million years. Learn about its depth, biodiversity, ...

The oldest lake in the world dates back about 25 million years and is also the world's deepest and most biologically diverse ...

Ghana is one of the most popular tourist destinations in Africa. The country is rich in history and was the first sub-Saharan ...

In the cold, lightless Pacific Ocean deep, the seabed is scattered with metal-rich rocks coveted by miners -- and huge ...