A small thing

This is just a small thing, but heading down towards the city center this evening, I accidently walked up this ramp (I accidently walk a lot of places here) and I found myself walking down a sort of fortress wall...  I suppose the medieval demarcations of original Canterbury. And it felt so special to be strolling down this elevated stone wall with little lookout nooks built in, while traffic and buses soared past on the pavement below. Other people used the walkway too, just carrying groceries, going out to eat... but I felt like I discovered it anyway.