World's Most Dangerous Roads Episode Rating Graph

Actor Will Mellor cajoles one of his best mates - comedian Keith Lemon - to join him on a high-octane road trip in Albania.

Another thrilling escapade in the wild - this time sees actor Stephen Mangan and comedian Lara Ricote, who have never met before, aim to reach the northernmost point of Australia.

Ed Gamble and Lou Sanders have been friends for years, so much so that she's bought a 'his 'n' hers' set of driving gloves to tackle a dangerous 1000 kilometres of Iceland.

Comedians Rhod Gilbert and Greg Davies attempt to drive through the mountainous, landlocked nation of Nepal.

Certified 'indoorsman' Phil Wang convinces best friend Pierre Novellie - also not much better at outdoor stuff - to join him in Africa's Kingdom in the Sky.

David Harewood and best friend Fraser James swap the sets of Hollywood for a new challenge in Slovenia where they face some of the most dangerous roads in Europe.

Comedians Maisie Adam and Suzi Ruffell wouldn't call themselves road aficionados - it took 10 goes to pass their driving tests between them - but they're tackling Morocco anyway.

Comedians Babatunde Aleshe and Kae Kurd go on an unforgettable journey through the Lower Zambezi Valley, a place where the local wildlife is almost as terrifying as the roads.

Rhod Gilbert and friend and fellow comedian Angela Barnes cross Italy's most treacherous Alpine roads in Rhod's first adventure since being treated for cancer.

Joe Swash and Seann Walsh are no strangers to jungles after appearing on I'm A Celebrity..., but neither of them has sought an ancient Mayan temple in Guatemala before.

Olga Koch and Thanyia Moore - who are friends from the comedy circuit - head to Bulgaria for a high-octane adventure that takes them across two epic mountain ranges.

Hugh Bonneville and Jessica Hynes take a terrifying road trip through the former Russian state of Georgia.

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

Jamali Maddix and Larry Dean experience the Land of the Thunder Dragon, a place of mystery and wonder in the rarely-visited and remote kingdom of Bhutan.

Jess Fostekew and her good friend and fellow comedian Desiree Burch take on an utterly insane trip across Colorado's Rocky Mountains in a Wild West adventure.

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