This is the seventh annual signature Urbanathlon event produced by Men's Health, the world's largest men's magazine. Highlights of this year's rigorous and demanding courses include: Stair climbs in Soldier Field (Chicago), Citi Field and Arthur Ashe Stadium (New York), AT&T Park (San Francisco), tire stutter-stepping, climbing over marine hurdles, over-under traffic barricade obstacles, traversing monkey bars, taxi cab hurdles, scaling a bus, and crawling under the Subaru XV Crosstrek obstacle before heading to the 8-foot wall at the finish lines.