I came across this movie trailer: http://gallery.me.com/genenacey#100835

The video features a ride held in Pittsburgh on the Saturday after Thanksgiving. The ride is 50 miles long, has thirteen climbs, and is known as the "Dirty Dozen". One of the hills is Canton Ave. and is 37 degrees steep with cobblestones. Many riders fall over and will run to the bottom and try again.

The video must be seen with Quick Step and is available free if you don't have it.