15 of National Geographic's Most Iconic Photographs

National Geographic is legendary for its breathtaking photography. Certain photos may remain ingrained in your mind, but why settle for a memory when you can have the real thing?

Take a look at these rare prints of the magazine's most revered photographs. (Note: When this post was first written, the images were available for sale through "Boundless: 125 Years of National Geographic Photography," a online-only auction of vintage and contemporary photography. That auction has long since closed, but the photos are still breathtaking!)

Fish hides in anemone in Fiji — (Photo: Mauricio Handler/National Geographic)

A pink anemone fish, Amphiprion perideraion, peeks out from an anemone in the Fiji Islands.

Presented by Christie's, the auction celebrates the legacy of the National Geographic Society during its 125th anniversary year.

Explorer descends into the Majlis al Jinn cave in Oman — (Photo: Stephen Alvarez/National Geographic)

Ben Caddell descends into the Majlis al Jinn cave in Oman.

The public can register bids on the Christie's website from July 19-29. A portions of the proceeds will go toward preserving the archives from which these images were selected.

Penguin leaps off a chunk of ice — (Photo: Ralph Lee Hopkins/National Geographic)

An Adelie penguin, Pygoscelis adeliae, jumps on an iceberg in Brown Bluff, Antarctic Peninsula, Antarctica.

Jou Jou the chimp touches Jane Goodall's head — (Photo: Michael Nichols/National Geographic)

Jou Jou, a captive chimpanzee, reaches out its hand to Dr. Jane Goodall at the Brazzaville Zoo in Brazzaville, Republic of the Congo.

Monarch butterflies fly into a deep blue sky — (Photo: Frans Lanting/National Geographic)

Monarch butterflies (Danaus plexippus) in flight in Michoacan, Mexico.

The ship Terra Nova is seen from an ice grotto in Antarctica — (Photo: Herbert G. Ponting/National Geographic)

The sailing ship Terra Nova is framed by an ice grotto in Antarctica.

People lounge on Copacabana Beach — (Photo: Mike Theiss/National Geographic)

Aerial of large crowd at the Copacabana Beach in Rio de Janeiro, Brazil.

Loggers with a giant cut down redwood — (Photo: Beckwith, N.E./National Geographic)

Loggers and the giant Mark Twain redwood, which was cut down in 1892 in California.

Snow leopard in Hemis National Park in India

A remote camera captures a snow leopard in the falling snow at Hemis National Park in Ladakh, Jammu and Kashmir, India.

Cambodian villagers smile for the camera — (Photo: Annie Griffiths/National Geographic)

Cambodian villagers celebrate as they get a fresh water well for the first time.

Airplane flies over the pyramids of Giza — (Photo: James L. Stanfield/National Geographic)

The replica Vickers Vimy aircraft circles the Pyramids of Giza in Egypt during its journey to re-create the original London-to-Australia flight of 1919.

Bison in the mist of Yellowstone National Park — (Photo: Norbert Rosing/National Geographic)

A bison in steam during winter at Yellowstone National Park in Wyoming.

Fireflies in an alfalfa field — (Photo: Jim Richardson/National Geographic)

Lightning bugs and wild alfalfa blanket a prairie in Strong City, Kan.

Grizzly bear catches fish in Brooks Fall in Katmai National Park — (Photo: Joel Sartore/National Geographic)

A grizzly bear opens wide for a mouthful of salmon at Brook Falls in Alaska's Katmai National Park and Preserve.

Prayer flags are strung in the mountains of Nepal

Prayer flags fly over the village of Khunde, Nepal to mourn Sir Edmund Hillary's family killed in a plane crash.