We have all heard of the Trans-Siberian, Russia's mega train journey that crosses Siberia as it skirts the Chinese border. But few have heard of the even more impressive B.A.M ( Baikal Amur Mainline ) which passes through virgin forest in the middle of Siberia. Built in the 1970s by young communists, the BAM is the greatest construction project of the 20th Century. And yet it is unknown in the West. I decided to go and ride this unknown journey across northern Siberia and speak to the people who came to build it. Join me as we ride 'The Bam'!