Very interesting! I worked in real estate for a few years and we did something called a caravan, where we would drive around and view the new listings. When I started, it blew my mind when a few of the experienced guys would take a glance of the streets, and knew exactly where they all were and would set a logical path to do it most efficiently. This is listings city-wide, with a population of 180,000 odd - so not just the local suburb. Eventually I learnt most of the streets myself and even if i didn't know exactly what street came off which for all the listings, I'd know the vaguely where it was.