But if we talk about the longest straight roads on the planet, the surprising leader is Saudi Arabia. According to data from dangerousroads.org, the country is home to the longest completely straight highway in the world. This makes it the longest straight road in the US and Canada. This region is also home to the world’s longest straight railway line, spanning 478 kilometers in South Australia. The list of the world’s longest straight roads highlights both human ingenuity in building infrastructure and the beauty of traveling long, uninterrupted distances.

Source: News 24 February 11, 2026 18:59 UTC