Just in case you, like me, are planning travels (there's conferences and workshops coming up, and I'm looking into options for getting there and back again) but would like to try and see how it would be Roman Style... here's a Route Planner based on the Tabula Peutingeriana, which is a medieval copy of a Roman map.
There you go. But don't expect the planner to provide you with routing to the nearest airport! ;) And if you prefer looking at the real thing, here's the digitised version in the Austrian National Library.