A map of stars in the night sky, created long ago by Native Americans, continues to baffle scientists. An early seventeenth century elk skin star chart from the Skiri Pawnee measures 15 by 22 inches.

For centuries, historians have traced the arteries of the Roman Empire through fragmentary maps and uneven records. Now, a new digital atlas nearly doubles the known extent of Roman roads, charting ...

A high-resolution digital map allows people to plan their routes along the ancient roads of the Roman Empire. Combining historical records with modern mapping techniques, researchers mapped hundreds ...