"Over six billion people crowd our fragile planet," says David Attenborough at the opening of this landmark BBC documentary program. "Even so, there are still places barely touched by humanity." Five years in the making, this Emmy and Peabody Award winning series visits 200 such wilderness locations with high definition cameras, showing us our planet and its wildlife as they have never been seen before. Each DVD contains two or three episodes from the series.

Caves drops into places like the Cave of Swallows in Mexico, deep enough to engulf the Empire State Building, and gains special access to the recently discovered Lechuguilla cave system in New Mexico. Here too are the astonishing variety of creatures living in Deserts, while in Ice Worlds we see in time-lapse how a colony of emperor penguins acts like a single vast organism.