Art and beauty images, for you Two of the most difficult roads in the world 1) Dalton Highway, Alaska: This Trans-Alaska (South-North) highway, which was built in 1974, is one of the most isolated in the world,surrounded by beautiful nature. Only three villages lie along its 666 kilometers. To use this road, with its very … Lire la suite Extreme beauty and extreme danger, in 2 of the most difficult roads in the world.