Yesterday evening: found a street that looks both like Sofia (because of the chestnut trees) and like Balchik (because of a wall that reminds me of the old barracks near which I was learning to ride a bike exactly 20 years ago). I was actually on the bike when I found it, and it was enjoyable to think of that paradoxical link between 1998, Balchik, Bulgaria, and 2018, Leuven, Belgium.