Cortes Bank, about 100 miles off California's coast , is one of the most dangerous surf spots in the world, with shallow, often shark-infested waters. But those facts don't deter the location's top surfers.
Every year people flock to one of the most ominously named places in the United States: Badwater Basin, Death Valley. They flock there to run an insanely torturous foot race.
Going uphill is largely a physical strain, while going downhill requires intense mental calculations.
Scott Jurek overcame an injury, sleep deprivation and steep terrain to complete a 2,189-mile run along the Appalachian Trail in 46 days and 8 hours.
Adventurer Chelsey Magness strikes a pose, as she balances hundreds of feet above Steelhead Falls in Bend, Ore.
The most beautiful and cleanest beaches, according to 'Dr. Beach,' range from Hawai'i to Massachusetts.
It takes much more than the actual leap to achieve a big wingsuit stunt.
Tommy Caldwell and Kevin Jorgeson began scaling the vertical wall nearly three weeks ago.
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