Travel across the Roman Empire (200 CE) in realtime using Stanford's new ORBIS online atlas.
"ORBIS: The Stanford Geospatial Network Model of the Roman World. With it, a user can determine how long it will take to travel from any point in the Roman Empire to any other, as well as calculate the cost of transporting goods and people."
"This heretofore unnatural union of geographers, technologists, and historians of the ancient world is becoming more and more common under the descriptor of "digital humanities." ORBIS looks to be one of the most effective examples of its promise.