the most incredible manmade motocross track of obstacles I've ever seen... effin cool!

Also worth watching:

Cannonball Baker heading to New York from San Diego on the early board road over the desert sand of East California, with a Stutz and with an Indian

Both found on the Old Motor  http://theoldmotor.com/?p=88359 A small belt-driven lathe from Cannonball Baker’s garage is still in use today ...