Yep, you get to go everywhere. I actually slept, on one of the program trips, in Lewis' room. Sadly, the Foundation changed up the programs (they are like a week seminar about Lewis) and the guests no longer reside at the Kilns but go there after overnighting in a nearby dormitory (!). Interestingly, the Foundation did not change the price for the program. Sad. But, yes, visitors to the Kilns can wander the house, or get a tour, depending upon how many residents are in residence. Lots of fun. House is just odd enough to be mysterious. You think you may see Lewis and Warnie just around the corner...