Cerberus – Qaanaaq, Greenland, 2015 subject_talking-heads Ali is widely regarded as

Ali is widely regarded as one of the most significant and celebrated sports figures of the 20th century and is frequently ranked as the greatest heavyweight boxer of all time

Singer-songwriter Prince is photographed in a fuzzy jacket during a photoshoot at Paisley Park's soundstage in 1998

Once the center of the city's rock and roll scene

Led Zeppelin is photographed performing in London in 1969

Robert Risko captures David Bowie as Ziggy Stardust in this 1997 unpublished illustration

Cerberus – Qaanaaq, Greenland, 2015 subject_talking-heads Ali is widely regarded as"Pressed so close their bodies seem to merge, these three young huskies looked for a moment like a mythic, three headed guardian. I made the photograph during a National Geographic assignment in the Canadian Arctic, where dogs like these once pulled hunters and traders across the sea ice between Greenland and Baffin Island. That long history of endurance and partnership still lives in their blood. What I saw here, though, was something simpler, born