Yes, but don't expect the tours to be informative. They are run by well-meaning volunteer guides who have no idea what they are talking about. Best to read about each structure on the website beforehand and then tune out the guide during the tour.
They do, but fairly hard to see the interior. Especially 2nd floor. Darn...
Yes they do. They just aren't allowed to take anyone upstairs.
I have no idea, I was just working outside, wasn't there for a tour. But I think yes.
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