I was staying in Mass. and drove to Rhode Island to go to a bar where a band was playing. When I got there, they had closed early for the night since nobody was there, so I turned around and went back to my R.I. hotel. It was late at night, so I didn't see much of it. That's my entire RI visit summary.
Connecticut: when my Boston-to-NY train stopped in New Haven CT, a freight train passed us on parallel tracks and derailed, blocking the tracks. We had to de-train, and I slept the night in the new Haven train station until I got word that I could catch a bus at a station a mile or two away. I took a cab to...as close as I could get, then had to run as fast as I could for the bus, dragging/destroying my luggage behind me, only catching it by the last second.
The states between (but not including) Wisconsin and Nevada (including Montana) were just on two cross-country drives from Wisconsin to California, and never stopped for anything besides gas, and sleeping in the car. Indiana was just on our way from Wisconsin to Michigan by car, and if we stopped, it was only for gas/food.
I've *seen* Minnesota one additional time, but from across the river in Wisconsin.
Denmark was 40 a minute visit, by ferry, to an ice cream shop, simply to get a passport stamp. France was when my German host family in Freiburg drove there one day for a liquor store run and I spent maybe 2 hours in the country, mostly sitting in a 90s Opel station wagon.