Riding the White Line (Sedona, Arizona)

Daredevil Michal Kollbek rides his bike across the famed White Line in Sedona, in Arizona's Red Rock State Park. The "White Line" is famous in the world of extreme mountain bikers. It represents a very challenging ride on an almost-vertical cliff face, requiring incredible balance, concentration and mental poise from anyone attempting it.

Home to some 10,000 inhabitants, Sedona straddles the near-Martian landscape of red rocks about 19 square miles in size. The town is 4,500 feet above sea level and is about a 90-minute drive from the Arizona state capital, Phoenix.

The route that’s carved into the Arizona rock was traversed by Kollbeck flawlessly. Mistakes are not an option there, and even a slightly missed turn will, in all probability, result in a gory death.