What is your El Capitan?

Captain Ahab sought the great white whale Moby Dick, and King Arthur's knights embarked on an epic journey in search of the Holy Grail.
But on Wednesday, the world watched as a real-life quest finally came to fruition: Kevin Jorgeson, 30, and Tommy Caldwell, 36, became the first free-climbers to ever scale El Capitan's Dawn Wall in Yosemite National Park.