The thought of running stairs voluntarily makes me want to curl into the fetal position and cry for my mommy. Four years of running bleachers during high school basketball practices left me as conditioned as Pavlov's dog. Not everyone is permanently scarred by a sadistic coach, though. The big daddy of stair races, Germany's Mt. Everest Treppen-Marathon (39,700 steps), qualifies as a double marathon. For more sane individuals, there are races at the Empire State Building... More >>>