Jamie-Lee O’Donnell and Saoirse-Monica Jackson travel to the rugged mountains of Romania.

Ed Gamble and Lou Sanders tackle a thousand kilometres of alien Icelandic landscape.

Stephen Mangan and Lara Ricote take on one of the most terrifying 4x4 roads in Australia.

Phil Wang and Pierre Novelli travel across Lesotho, one of the world's highest countries.

Zoe Lyons takes Joe Wilkinson out of his comfort zone on a trip across eastern Turkey.

Will Mellor and Keith Lemon take a high-octane road trip across Albania.

Sue Perkins and Liza Tarbuck drive the legendary Ho Chi Minh Trail.