These silly sports might not make it to the Olympics, but they'll make you wish they would.
Extreme sports team set the the world mark at an airfield in Perris, Calif.
A 750-mile, "human-powered" boat race between Washington and Alaska forbids engines and traverses some of the choppiest, coldest, most hazardous waters anywhere.
The first ever wingsuit national championships are set for later this month in Chicago. Will the addition of competition change the sport?
Alaska's venerable Iditarod dog-sledding race has incorporated technology to help keep its pups and mushers safer, but those changes may leave some racers feeling disconnected from the race's spiritual roots.
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.
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