Certain individuals possess the ability to spot subtle features, features invisible to most people, in a given environment. Such abilities exist for rural settings, where one so blessed might spot a far-off spring in the woods, or a bounty of wild grapes buried deep in a thicket, as well as for urban domains. The off-the-beaten-track boutiques, cafes, used-book shops, and discount basements that most locals labeled as the real charm of this manageable city were totally invisible, he'd have to meticulously document the name and address of the place to ever find it again.