This week, we continue with our series of longer pieces unraveling the histories of storied buildings.

(Photo: Nigar Hacizade)
If you walked into a building expecting to see a regular museum, but found an apartment-sized living room with minimal, seemingly random paraphernalia, unremarkable oil paintings and posters on the walls, and a $20 admission charge, what kind of review would you post on TripAdvisor? Would your visit even be long enough to merit one? And yet 56 of 70 reviews for the The Museum of the American Gangster, on the second floor of 78-80 Saint Marks Place, described it as “excellent” or “very good.” Half the reviewers on Yelp gave the place five stars. The glowing assessments have something in common: they all caution the visitor to get over any initial disappointment and enjoy the guided tour.