On top of what texasbigdata said, try searching for "london" "the knowledge". The non-linear way London's street system has evolved over the centuries has lent to some very unusual ways of getting around town that Uber/Lyft/GPS haven't really been able to supplant yet. The guys who test for "The Knowledge" have to do years of research, physically driving the best routes from major locations in great detail.
This research, whether they pass or not, results in marked growth in temporal and visuo-spatial parts of the brain.
It's one of my favorite subjects being a bit of a geography geek myself.
