I was once convinced I was going to become a National Geographic photographer—until I watched the documentary “National Geographic's The Photographers” and realized just how brutal life can be for those guys (malaria, plane crashes, months in the jungle being eaten alive by gnats). Still, all those hardships result in some of the most breathtaking photos ever taken, and National Geographic's new Tumblr, Found, is a virtual gallery of the best, and you can easily purchase prints of photos you like. While it's still pretty young, there's an incredible archive of pictures on there already. Well, that's all I'll say, because in this case, a picture is truly worth a thousand words. Take a look at natgeofound.tumblr.com.