Wow Leslie, I have lived here all my life and you know more than I do. Guess you didn't plan on staying and played the tourist hoping you could find your way back to Chicago.
I have been to Foxwoods, and it was fun, but a great way to get rid of lots of money fast.
There are two gambling casinos in CT now, one has a Bingo room and the other doesn't. I am not sure which one does, but if your parents are looking for Bingo they should check it out.
I also love Mystic, especially the shopping village. My parents loved Mystic Seaport more than the Aquarium, maybe it is an age thing. But both are fun.
Next to the Aquarium and Shopping Village are tons of outlet stores. The Seaport is down the street.
If your parents have their own car they can take a small drive and visit the submarine base in Groton. Not lots to see, but any man who was in the military seems to love this place.
Not too far from Mystic, approx. 1/2 hour more is Newport Rhode Island. Everyone loves to take the mansion tours. You can go into the house where they filmed the Great Gatsby with Robert Redford, and drive by the one where Jacki married JFK.
There are tons of nice places to eat in Rhode Island, right in the center of town, along with quite a few little shops.
If they come down further into my area... Bridgeport... the home of PT Barnum. We have a museum of alot of his items from his circus years, including Tom Thumb and Lavinia Warren's clothing. It is a great little place. Bpt also has the only full zoo in the area, the closest is the Bronx zoo.
But don't stay in Bpt,... only the crazy people (he did say a sucker born every minute) stay in Bpt.
Oh, and on the way down to Bpt from Foxwood your parents can stay at Leslie's house, she has a large house... Peggie