We ended the day in Providence, RI (although our hotel was in Pawtucket). We didn't really feel like looking around, so we only did a quick tour in the car. In hindsight, I think that was a mistake.
It has not escaped my notice that Providence is the only place on our tour which has an SPN episode set there (Houses of the Holy). :)
I don't really know what a lot of these things are, so they are supplied for a flavour of the place.
As you might expect in New England, there are lots of houses like these:
Delightfully dodgy looking docks complete with strip joints: