Hot Roads - The World's Most Dangerous Roads

India's state of Rajasthan is known for its ancient palaces, vast landscapes - and wild transport routes. For thousands of years, dromedaries served as the most important means of transport. Today, India's roads are considered fast-paced, chaotic and unpredictable. On a journey through the desert state, we discover its rough roads. We travel by truck, bus, autorickshaw and on dromedaries from the Aravalli Mountains to the Thar Desert, encounter free-roaming leopards, huge flocks of cranes, and of course, time and again, sacred cows that calmly block the highways.

Far out in the "Wild West" of Canada lies Bella Coola. If you want to get to the small town on the Pacific, you have no choice: there is only one road leading there, the Bella Coola Highway. It is constantly monitored and yet remains dangerous. Gravel roads, narrow hairpin bends and steep mountain slopes make the highway in British Columbia a particular challenge.

Tanzania is known for its national parks, vast landscapes and wild roads. They make traveling a real adventure. We travel in trucks, buses and off-road vehicles from the Indian Ocean via the Serengeti to Lake Victoria, accompany huge herds of wildebeest, observe lions and rhinos - and show the lives of the people who live on and along the roads.

In the far north-east of Georgia, on the border with Russia, the Abano Pass leads to lofty heights. At almost 3000 metres it is the highest passable road in the Great Caucasus. It winds its way up dizzyingly steep slopes. On wild paths, it leads through a fascinating landscape. It is a voyage of discovery into a mighty mountain world.

It is one of the wildest roads in Asia: the Trans Sulawesi Highway. The adventurous road leads through Indonesia's fourth-largest island and takes people to spectacular destinations. To beautiful beaches, turbulent cities, or unique primeval forests. If you want to drive on the highway, you need strong nerves: it is loud, crowded, confusing, and sometimes dangerous.