So much fun putting this map next to a modern one and looking at where I'm from in Croatia. West of Jajce in Bosnia there's a ring of roads that hasn't changed

So much fun putting this map next to a modern one and looking at where I'm from in Croatia. West of Jajce in Bosnia there's a ring of roads that hasn't changed for 2000 years. I wonder if there's a missing roman settlement under Sarajevo, considering the roads there match so well and the size of the city.