12/21/2010 08:45 am ET | Updated May 25, 2011

Wildest Roads Around The World (PHOTOS)

Celebrate extremes of human--and automotive--endurance with National Geographic's pick of the most back-to-nature and bone-rattling rough tracks. From Canada to Sri Lanka, here are 10 untamed roads certainly worth a drive.

List and text courtesy of National Geographic's Drives of a Lifetime: 500 of the World's Most Spectacular Trips. For more road trips from National Geographic, please click here.