El Capitan is a giant rock formation located in Yosemite National Park. And when I say giant, I'm not exaggerating. The Dawn Wall of El Capitan is 3,000 feet tall. Two guys decided they were going to climb it. Without rope. Willingly. Tommy Caldwell and Kevin Jorgeson took up the challenge of climbing this sheer rock face. Both of them free climb - that's without rope, in other words, one bad slip up and your goose is cooked. Luckily, both are very skilled climbers, and after 19 days of scaling the cliff, with many people including the President watching, they...