world's most extreme road trips
Whether you are desperately revving your car's engine to clear a narrow pass or grinding through an endless expanse of sand in a 4X4, these five roads have gained a reputation for being among the most brutal in the world.
Karakoram Highway, Pakistan and China
A centuries-old trading trail that once formed part of the famed Silk Road, the Karakoram Highway is the world's highest altitude paved international road. Its 1,200km slice through the mighty Karakoram Range, from Abbottabad in Pakistan to Kashgar in China, passing through some of the world's most remarkable mountain scenery and providing access to top-notch trekking and mountaineering. (Lindsay Brown/LPI/Getty)