"The Roman city of Hadrianapolis, in what's now northern Turkey, was founded in the 1st century B.C. and named after a Roman Emperor. Today, it's known as the home of the "Mona Lisa of Roman Mosaics" and for its stunning ruins, including churches, a theater, and a military garrison. And archaeologists have found a breathtaking part of Hardianapolis's military history, with this fragment of a Roman soldier's iron face mask that dates back 1,800 years"