6. Commonwealth Avenue, Philippines
This road isn’t high in mountains, bridged low over water, or even riddled with sharp turns. In fact, it’s just a normal 7.5-mile urban highway, and a wide one at that with up to 18 lanes. But to locals, its known as “Killer Highway” due to the high number of casualties and fatalities -- thousands of deaths per year actually -- that result from the heavy volume of traffic. A poor drainage system (which leads to heavy flooding during storms), hundreds of motorbikes -- that tour buses can’t see -- and even pedestrians walking nearby help contribute to the number crazy number of accidents.
7. Federal Highway 1, Mexico
This road is straight up loco. Spanning 1,000 miles along the Baja Peninsula, and heavily used by freight trucks transporting goods to remote towns and villages, the road snakes through the mountains and along cliffs. It’s a heart stopper on its own, but what’s even scarier: drivers don’t need to pass a driving test in six Mexican states, meaning you could possibly be sharing that road with texting-addicted amateurs.