Saudi Arabia’s Highway 10 has been officially recognized by Guinness World Records as the longest straight road in the world, surpassing Australia’s Eyre Highway. This 256 km (159 mi) stretch of asphalt desert runs through the Rub al-Khali, also known as the Empty Quarter, the largest sand desert in the world. The highway’s straight, unbroken route offers passengers an unparalleled driving experience with uninterrupted views of the vast desert landscape.