Stopped by the Institute for American Indian Studies in Washington, CT the other day. Once it was a center of research, though these days it is more focused on education.
The museum is great - not as big or impressive as the one at Mashantucket Pequot, of course, but a great stop on the western Connecticut tourist trail
I found a lot of interesting information that I'll use while teaching Connecticut history this fall at UB.
But as I say in the Insiders' Guide, you should visit when they have an event, like a dance or a workshop. That is when the IAIS really shines. Maybe I'll see you there!