A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. Rivers have been used as a source of water, for obtaining food, for transport, as a defensive measure, as a source of hydro power to drive machinery, for bathing, and as a means of disposing of waste. Rivers inspired many poets and painters in the past, and now photographers capture their beauty. In this article we present 50 of the most famous and beautiful rivers in the world. Let’s get started!