On my second visit to the Broomfield, Colorado, Depot Museum, I was escorted through the museum's interior and educated by the knowledgeable staff. I also got to see the collections plus preservation and cataloging efforts by dedicated people who spend their valuable time educating Broomfield's citizens.
Photos of my tour of the Molly Brown House Museum in the elite Capitol Hill neighborhood of Denver, Colorado. Margaret Brown was a socialite, but not the raucous loudmouth of the movies. Her Victorian house has been lovingly restored and refurbished so you can see what it was like as a wealthy inhabitant of Colorado in the 1800s.
The Museum of Fine Art in St. Petersburg, Florida, is small but impressive. I've visited it more or less regularly for years, and they present quality exhibitions in a professional environment. A 2006 expansion allows the museum to offer a cafe and respectable gift shop, in addition to their permanent collection and revolving exhibits. It's a fine way to spend an afternoon, especially if you include the nearby Dali Museum in your itinerary.
Right on the water in St. Petersburg Florida is a modern and unusual building. The surreal yet sumptuous architecture of the Dali Museum is worth the experience, no matter what's on display. But you'll want to stay for the permanent collection plus whatever they have in the temporary exhibit halls, too.