One afternoon I drove through a series of long tunnels north of Nice to La Turbie, a medieval village hugging the hills 1,600 feet above the Mediterranean ... the Roman Empire. The map's origins ...

of rivers and canals Map reveals how much it would have cost to travel on roads and seas across the empire in 200 CE It calculates the route based on the season, or mode of transport chosen - and ...

The Roman Empire grew over a long period of time from basically a political unit in Italy to the entire Mediterranean basin, but it took a lot of time.... It really grew out of a number of ...