10. Trans-Siberian Highway
Along with Australia’s highways and the Trans-Canada highway, the trans-Siberian highway is among the longest highways in the world. To get to St. Petersburg from Vladivostok, the road crosses mountains, forests, deserts and everything in between.
If that is not enough, much of the highway is unpaved and unmarked making it very dangerous for any driver. There also all manner of creatures waiting eagerly for your car to break down. This road is definitely not one of the ideal roads for a casual drive.