Some of the tulou in Fujian have unique architectural characteristics. This was one of the last ones we visited on our trip, and probably the most impressive. At the center is a family shrine, surrounded by concentric circles of rooms (mostly for storage and livestock). There are various paths to go between the concentric circles, but only one path that leads directly to the outer structure--it was almost like a maze to walk through. I would not suggest this one for anyone who is claustrophobic.