National Geographic

A young Kenyan woman holds her pet deer in Mombassa, March 1909

A young Kenyan woman holds her pet deer in Mombassa, March 1909

A man sells goldfish in baggies tied to a tree branch in Beirut, Lebanon, February 1983

A man sells goldfish in baggies tied to a tree branch in Beirut, Lebanon, February 1983

A man balances a piece of pumice rock on his legs in Katmai National Park and Preserve, Alaska, September 1921

A man balances a piece of pumice rock on his legs in Katmai National Park and Preserve, Alaska, September 1921

A wealthy group of young people relax by a pool in California, 1940

A wealthy group of young people relax by a pool in California, 1940

I think I could spend days sifting through the Nat Geo Found Tumblr. Before you click the photos - beware: You're about to be sucked into a vortex of crazy cool photos, so open up your calendars!