A thing from 2015 that I hadn’t seen until recently: Londonist’s Tube Map of Roman London. “Stations indicate sites of major Roman landmarks, such as gates in the wall, municipal buildings and temples. Nobody knows what the Romans called their creations, so we’ve used the modern names, like Ludgate and Bishopsgate, which are medieval in origin. Stations in bold indicate locations where Roman remains are still accessible to the public.” [Londonist]