China has over 1,500 rivers. Most of the major rivers - like the Yangtze - have their source on the Qinghai-Tibet Plateau and drop greatly from the source to the mouths. As a result, China is rich ...

Between two major rivers in China, a vast network of underground caves and rivers crisscrosses below the surface. The caverns are created as monsoon rains wear down the soft karst rock on the way ...