Furka Pass
While the Furka Pass looks like a mightily terrifying road to take on, we have to admit that it is very beautiful as well. You can find this scenic but scary road in the Swiss Alps. You decide if it is worth it.
Oh-My-God Road
This is a pretty popular road among hikers who visit Colorado. This road is just wide enough for two vehicles. Just make sure to watch out since there are lots of blind roads. Accidents are pretty common.