The Road to Kushan is the longest continuously paved road in the world, running from Stoneport, down the center of the Outer Circle, through Mother's Gate, and eventually to the north gate of Kushan. Originally built to connect all the nations of the Circle, it was developed over time into a well-paved straight-shot road for trade between the Eastern Block nations, The Broken Kingdoms, the Circle, and Kushan.

It is considered a sister road to the shorter, less developed Road to Iron, which runs from Ironport to the Broken Kingdoms.