Roads are the ultimate metaphor for life. They cut across vast swaths of territory, have a beginning and an end, and they are dotted with scenes and moments that mark a journey, much like life itself. Our language is permeated by road and driving-related metaphors: You come to a fork in the road when you have to make an important decision, or are on the road to ruin when a direction you’ve taken in life is sure to result in disaster; speed bumps become obstacles to progress and when you’re not paying attention at work you fall asleep at the wheel. But roads are much more than that. The road is an instrument of entry and escape, a means to an end and a symbol of progress laden with drama, pain and even death. All roads (or motorways or highways…) pose a risk. The fact that you’re driving alongside other fast-moving vehicles is always dangerous, potentially, at least, and there’s hardly any margin for errors. But some roads, due to their location or the way they were built, make travelling a real gamble. Here are 15 of the most spectacular and hair-raising roads in the world.