5 MOST DEATH-DEFYING ZIP LINES IN COLORADO

If heights don’t make you want to throw up and you’re looking for a little adventure here in Colorado, maybe you should try zip lining. With rocky cliffs, gorges and forests galore, there’s a lot of ...

Could This 15-Year-Old Redefine Rock Climbing?

Over the past year, Ashima Shiraishi climbed the hardest rated boulder problems ever achieved by a woman—and she’s just started pushing the limits of her sport. Get to know all 10 honorees, then vote...