There is a highway in Alaska that is located in a sparsely populated area with extremely icy weather. The route starts on the Elliott Highway and ends in Deadhorse. Most of the time, only giant trucks pass through.
18. Guoliang Tunnel- China
This road was carved along the side of a mountain by 13 villagers using hammers and chisels. The bridge has a maximum width of four meters and a maximum height of five meters. Tourists and hikers alike enjoy it nowadays.
