When I went to Bethlehem, USA (Pennsylvania) this summer I wasn't sure what to expect. A colonial quarter from the 18th century. There is a parking lot right next to the "entrance" below the bridge. Everything is free. The houses are in decent condition but can only be seen from the outside as far as I know. Maybe there are special days to visit them. It is nice to see how the buildings form a village: a dye house, butchery and so on. Those, however, are very often found in Europe and in fact this site is aiming as a transnational extension to Christiansfeld in Denmark. Having the same over in the States is unfortunately nowhere near special in my opinion, and I don't find that unique enough. I wasn't a fan of the Danish town but it was at least a living town, not these abandoned buildings. A national treasure maybe but even then I'm not very sure. The place had zero visitors when I was there and doesn't seem very keen on attracting any. FYI this is 2h from NYC by car.