World's Most Extreme Races
Some races require strength, stamina and mental grit. Others? Well -- only a good sense of humor and a love for the bizarre. From dog-sledding challenges and icy ultramarathons to zombie obstacle courses and rickshaw runs, we highlight some of the wildest, weirdest, most physically demanding races around the world, both the hard-core to the hilarious.
Text by Julia Dimon | Photo editing by Connie Ricca
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WHAT DO YOU THINK?
Which of these extreme outdoor sports would you be brave enough to try?
- BASE jumping
- Ice climbing