Inca road system: Did you mean...?

An illustration of the solar system by Martin Kornmesser. From The International Astronomical Union.

The underground channel of a qanat in the Turfan water system in the Turpan Depression of Xinjiang, China.

A photograph of part of the tunnel network of the Maginot Line, the defensive system built along France's eastern frontiers prior to the Second World War (1939-45). From the Schoenenbourg fort, Bas-Rhin, France.

The Achaemenid Persian Empire functioned as well as it did because of the efficient bureaucracy established by its founder Cyrus the Great (r. c. 550-530 BCE) which was administered through the satrapy system. A Persian...

Map of the Persian Royal Road from Susa to Sardes.

Remains of a Roman road in Tarsus, Cilicia.

View of the Theatral Area of the Palace of Knossos (Crete) and the Royal Road right below.

An 1870 oil on canvas landscape, The Road to Louveciennes, by Camille Pissarro (1830-1903), the Danish-French impressionist painter. The simple composition and colour tones are typical of the artist's work in this...

Remains of a Roman road in Tarsus, Cilicia, modern-day Turkey.

Ambrussum is a Gallo-Roman archaeological site which has revealed an exceptional collection of buildings from the Gallic and Roman periods. Ambrussum was a relay station on the Via Domitia which ran at...