Where in the world has the straightest roads?

Netherlands, Northern Germany, Center of the European part of Russia, Mid-west United States, and Canadian prairies have the most straight roads.

Top five longest straight roads

1. Highway 33 – Saskatchewan (Canada) – 143 kilometers/87 miles
2. Eyre Highway (Australia) – 145 kilometers/90 miles
3. Highway 54/64, Texas to Oklahoma (United States) – 172 kilometers/107 miles
4. Highway 46, North Dakota (United States, Canada) – 192 kilometers/119 miles [The straightest road in North America]
5. Highway 10 (Saudi Arabia) – 193 kilometers/120 miles