Documenting impoverished, at-risk children for UNICEF, photographer Simon Lister is joined in Bangladesh by goodwill ambassador Orlando Bloom.

Simon and Orlando continue their Bangladesh trip, visiting a makeshift school and photographing young children working in hazardous jobs for low pay.

Undersea photographer Shawn Heinrichs fights to preserve the rapidly vanishing diversity of ocean life by capturing its beauty in dazzling images.

Shawn continues his quest to conserve marine wildlife by capturing some arresting manta ray pictures in the Raja Ampat Islands of Indonesia.

Dylan River continues a family tradition of filmmaking focused on the Aboriginal people of his native Australia with a tour of ancient rock art sites.

Dylan journeys into Arnhem Land, where he participates in a welcoming ritual and films the customs and tribal lifeways of the Yolngu people.

Intrepid adventure sports photographer Krystle Wright crafts images of free divers in Vanuatu, highliners in Colorado and paragliders in Utah.

Art Wolfe documents the world's cultures, including the Surma of Ethiopia and the masked mud men and Huli clans of Papua, New Guinea.

Hoping to ensure the park's survival, wildlife photographers Jonathan and Angela Scott document the native creatures of the Maasai Mara in Kenya.

Underwater photographer Eric Cheng seeks the truth about demonized and mythologized creatures, starting with the green anaconda of Brazil.

After a career chronicling the horrors of war, photographer Stephen Dupont seeks to document a more poetic and dignified approach to death in India.

Marveling at the abundant wildlife in the Mara's ecosystem, the Scotts photograph a cheetah, a Maasai ritual and an elusive leopard mother and cubs.

Richard I'Anson documents a fire rite, attempts to photograph the elusive Himalayan snow leopard and captures the colorful Festival of Holi.

Stephen Dupont's quest for reverent depictions of life and death brings him to Namibia's deserts and the Bushmen of the Kalahari.

Following in the footsteps of explorer Ernest Shackleton, landscape photographer Peter Eastway travels to Antarctica to create stunning polar images.

Australian marine photographer Darren Jew captures mating humpback whales in Tonga, a 70-year-old biplane wreck and an active New Guinea volcano.

From brown bears in the rivers of Alaska to mountain gorillas in the jungles of Uganda, nature photographer Art Wolfe hunts for the perfect picture.

To defend one of the world's most feared aquatic species, Eric Cheng and diver Jim Abernethy photograph human-friendly tiger sharks in the Bahamas.