Earth's Most Impressive and Forbidding Landscapes

Earth's Natural Wonders: Life at the Extremes airs Wednesdays at 8:00 pm, followed by Kingdoms of the Sky at 9:00 pm.

PBS's Summer of Adventure has begun! From the cuisines of America's diverse immigrant communities to structures that changed America, there's a lot to explore, including three of the world's most impressive mountain ranges in Kingdoms of the Sky and some of Earth's most forbidding landscapes in Earth's Natural Wonders: Life at the Extremes. Discover the people and wildlife who live on the craggy slopes of the Rockies, the Andes, and the Himalayas in the former, and the humans who survive in some of the harshest conditions on the planet in the latter. For a sneak peek, browse through some breathtaking photography from both series. 

A camel herder leads his camel train over the sand dunes in Nubra Valley, India. Photo: BBC/Alex Lanchester

A nighttime camp for a skiing expedition in the Rocky Mountains. Photo: BBC

Sunrise at the Incan ruins of Machu Picchu. Photo: BBC/Matthew Wright

Bighorn Sheep fight over mates in Wyoming. Photo: BBC/Lydia Baines

Jump location for wingsuiter Jeff Shapiro at Bitterroot National Forest in Montana. Photo: BBC/Stuart Dunn

Buddhist monks at Phyang Monastery in Ladakh, India put the finishing touches on a sand Mandala. Photo: BBC/Anthony Pyper

Snow-capped peaks in the Peruvian Andes mountains near Huascaran National Park. Photo: BBC/Matthew Wright

A Salt Flat Lizard surveys the scene on the high altitude altiplano of Northern Chile. Photo: BBC/Matthew Wright

Gheralta Massif in the Tigray Region of Ethiopia. Photo: BBC/Alistair McCormick

Alpine landscape around Zermatt, Switzerland. Photo: BBC/Russell Leven