详细介绍：Across our planet there are a handful of places th…Across our planet there are a handful of places that just take your breath away: Everest, The Grand Canyon, Victoria Falls, The Amazon. We call them Natural Wonders. They may be awe inspiring. But these are some of the most inhospitable places on the planet and they pose extraordinary challenges for those who live there. This is the story of what’s created these wonders, and of the people who survive and even triumph in these astonishing places. 详情