Bolivia's "Death Road" usually gets all the attention, but there’s a road in France that can definitely give it a run for it’s money when it comes to sketchy drives.
The Gulf of Burnёf is connected with the island of Noirmoutier by a 2.5 mile long “sinking road” called the Passage du Gois. If you get there at a certain time of day, it will look like a normal, cobblestone road. But wait a few hours and it will disappear under 13 feet of water, making it so drivers can only use the road twice a day for a couple of hours at a time.
If your timing happens to be off or you have the unfortunate luck to break down halfway through, no worries — there are elevated rescue towers along the way for you to climb up and wait to be rescued. Your car, on the other hand, might not fare so well under 13 feet of water.
