1. Siberia

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. 8 July 2012. 60 min

Ed Byrne and Andy Parsons brave temperatures as low as 50 below to drive across Siberia's infamous Road of Bones.

2. Ho Chi Minh Trail

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. 15 July 2012. 60 min

Sue Perkins and Liza Tarbuck drive the legendary Ho Chi Minh Trail, a network of dangerous roads hacked through mountains and jungles of Laos and Vietnam.

3. Ethiopia

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. 22 July 2012. 60 min

Hugh Dennis and David Baddiel drive Ethiopia's bone shaking roads to reach Askum, home of the Ark of the Covenant.