A woman from Melbourne swam 78 miles in 42 1/2 hours. Continue reading →
Karina Chikitova was found emaciated but alive, after enduring freezing temperatures, with only berries to sustain her.
Oscar Pistorius, aka "Bladerunner," lost a big race in the Paralympics this weekend. He had something to say about it, too.
Any day now, Nyad will try once again to become the first to make the record-distance crossing on her own stroke power.
Tony Robbins' followers burned their feet on hot coals this weekend, but did it need to happen? Find out how to firewalk over 1,000 degrees.
In the quest to break the sound barrier without a vehicle, Felix Baumgartner jumps from a capsule 96,000 feet from the ground.
The biggest challenge may be getting to the starting line on Staten Island.
The New York City Marathon is canceled just two days before the event due to the devastating aftermath of Hurricane Sandy.
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