Near the southern end of Skyline Drive, considered Virginia's best fall drive, the Blue Ridge Tunnel is a 4,273-foot-long passage that traverses Afton Mountain. The tunnel was designed by French ...

The Great Smoky Mountains are famous across the United States as an amazing place to get outside and enjoy nature. In fact, the Great Smoky Mountain National Park is so well-loved that it is ...

Maybe that's because it's also one of the world's steepest roads, chiseled into the mountain by local villagers. The Guoliang Tunnel is located in the Taihang Mountains in China's Henan Province ...