For many decades, Olympic Games included "demonstration sports." Some, like curling, became part of the permanent roster. But ...

Sled dogs, like human athletes, eventually slow down. And, again like their human counterparts, when the inevitable moment arrives, they usually aren’t ready to quit. Think of those aging marathon ...

With all the lore and wonder surrounding the North Pole, it may seem like a place of pure legend. But this frozen edge of Earth is very real—and for the most daring travelers, it's an exhilarating ...