Running from the US/Mexico border at Tijuana, down the Baja California peninsula to Cabo San Lucas, Mexico’s Highway 1 spans 1,063 miles, and is peppered with blind corners, few road signs, and little to no guard rails. Drivers tend to speed down this two-lane road, meaning that you can easily encounter an irresponsible driver flying round a corner on your side of the road.
3. Patiopoulo-Perdikaki Road, Greece
An almost 18-mile-long mountain road in Greece, Patiopoulo-Perdikaki Road is dangerous for many reasons. The road has an elevation gain of 2,706 feet, has no road markings, no guard rails along very sheer drops, and very little grip due to its loose gravel. This area is also prone to heavy fog and mist, which makes conditions even more treacherous. On top of that, this is a busy road, and locals tend to drive it very fast.