Which is the longest straight stretch of road in the world?
a) Eyre Highway, Australia
b) ND-46 W, United States
c) B71, Australia
d) Highway 10, Saudi Arabia
Highway 10 in Saudi Arabia is the longest straight stretch of road in the world. It has a straight stretch of 256 km length. This road starts from Haradh and ends at Al Batha and cuts through Rub Al-Khali desert.