Hidden beneath Norway's rugged mountains lies a marvel of modern engineering: the Lærdal Tunnel, the longest road tunnel in the world that takes 20 minutes to drive through. This astonishing 24.5 ...

This terrifying road's nickname is "The road that tolerates ... chiseled into the mountain by local villagers. The Guoliang Tunnel is located in the Taihang Mountains in China's Henan Province ...