Victoria Falls is the largest waterfall in the world.

Cutting across the Zambezi River, bridging the countries of Zambia and Zimbabwe,  this awesome force of nature divides two natural worlds -- the tranquil meandering river above the cascade, and the raging abyss of the gorge below. The upper river is idyllic, running shallow through sandstone hills and meandering around islands and reed-beds where elephants, hippos, and crocodiles thrive. Between the two worlds are treacherous cliffs and thick, mossy rainforests fed by river mists, home to baboons whose lives change with the seasons. When the rains fall, the rivers swell and the falls thunder.  Tonight, NATURE takes us to see Victoria Falls...7pm