Learn how rivers can make civilizations rise or crumble, divide cultures or link them together, and even provide crucial clues to where we came from.

Awash: a river of bones -- Tigris & Euphrates: twin rivers of civilization -- Nile: the giving river -- Rhine: an international river -- Amazon: a world of water -- Zambezi: exploring the river of freedom -- Thames: the river that built an empire -- Mississippi: river of song -- Ganges: river of faith -- Yangtze: a changing river.