We timed it well so that we arrived at the visitor center 5 minutes before the tour was leaving. We got onto a school bus with about a dozen other people. We took a bumpy ride up to one of the quarries and a viewing ledge.
The tour guide was really informative and it was really interesting seeing how the granite is mined from the quarry.
Since we were there during the weekend, no one was working but all the tools and machines were pointed out and their functions described. It might seem like a boring thing to go see but it was really cool. Highly recommend if you're in the area.
After to tour, we went down into Barre for lunch at the Cornerstone Pub and Kitchen. This place has a great beer selection, including Header Topper in cans.