Moustache Dash, Tulsa

In Tulsa, the 5K Moustache Dash jump starts the month of Movember, when men around the world let their facial freak flags fly to promote men's-health awareness. What began only nine years ago as a fashionable pact among 30 Australian “mo bros” has blossomed in to a global movement more than 850,000 members strong. Their annual funds raised have nearly doubled every year since 2008, reaching $126.3 million in 2011 in support of prostate- and testicular-cancer research and prevention.