Check out this crazy expensive highway in Norway. The Atlantic Highway (Atlanterhavsveien in Norwegian..as tongue twisting as the road itself.)
And for another wild highway see Bolivian Highway of Death
It jumps from island to island. 5 miles long.
The road is fantastic enough that it is ranked as the second most visited tourist destination in Norway.
During the 6 year construction, they had to work through 12 hurricane class storms.
Driving this gets added to my bucket list!