The extensive roads, highways, bridges and railway lines in all parts of the world stand witness to the glorious growth and progress made by the human race in a due course of time. Many of the longest highways in the world are located in USA, which has been reputed as the more developed part of the world.
Listed below are the top 10 best longest highway roads in the world:
10. Interstate 80 (1-80), USA
Interstate 80 (1-80) is the 4666 km long highway, which makes it the tenth longest highway road in the world. It is also called the Christopher Columbus Highway and starts from an interchange with US Route 101 in San Francisco and ends at New Jersey, passing through 11 states on its way.
9. Interstate 90 (1-90), USA
Running from Boston to Seattle, the Interstate 90 (1-90) Highway is the longest interstate highway in USA, besides being the ninth longest highway road in the world. It stretches to a length of 4860.2 km and runs parallel to US Route 20, spanning 13 different states in all.
8. US Route 6
Among the longest highways in the world is the US Route 6, which is also known as Grand Army of the Republic highway. The highway, which runs from Bishop, California to Provincetown, Massachusetts, has a total length of 5158 km and is the longest continuous highway in the US.
7. US Route 20
Another American highway to feature among the top 10 longest highway roads in the world is US Route 20, which spans a length of 5415 km from coast to coast. It runs from Boston in the Eastern Coast to Newport in the Western Coast, crossing nine US states on its way.
6. China National Highway 010
On number 6 is the China National Highway or Tongsan Expressway, which is also the longest highway in China. The length of this highway is 5700 km and it extends from Tongjiang in Heilongjiang to Sanya in Hainan.