If you look straight onto the Eshima Ohashi bridge in Japan, the ridiculously steep incline makes it look more like a roller coaster than a road for cars to drive on. I mean, come on, would you want to drive on that road? It's basically a highway to outer space, a shortcut to vomiting from nausea.
The bridge is the third largest ridge bridge in the world (largest in Japan!) and stretches about a 1.6km long with a height of 44m and a 5.1 per cent and 6.1 per cent grade on each end. This picture from the China Times gives me the yeeshes:
But thanks to the wonders of civil engineering and expertly employed high fences, the roller coaster bridge doesn't look that scary to drive on: