Why was the Roman city of Timgad left to become a ghost town on the edge of the Sahara desert? On the fringes of the Sahara desert, a mass of sprawling ruins stand stark against the parched landscape. Many centuries ago this was a bustling Roman metropolis, one of the empire’s last outposts in the south.

Source: This Is Why Africa’s Roman Ghost City Was Left To Sink Into The Saharan Sands For 1000 Years