This is a great TEDx talk about a Brit who went on a bike ride through mad places like Siberia in winter, the jungles of Papua New Guinea and Afghanistan…
http://www.youtube.com/watch?v=pirBjn4ZdKo
He also has National Geographic TV series and a book about what happened
(amazon link - http://www.amazon.com/Cycling-Home-Siberia-miles-bicycle/dp/B0078XOW24/ref=tmm_pap_title_0?ie=UTF8&qid=1305344399&sr=8-1)
http://www.youtube.com/watch?v=pirBjn4ZdKo
He also has National Geographic TV series and a book about what happened
(amazon link - http://www.amazon.com/Cycling-Home-Siberia-miles-bicycle/dp/B0078XOW24/ref=tmm_pap_title_0?ie=UTF8&qid=1305344399&sr=8-1)