This was used as an official residence by Chiang Kai-Shek and is now a museum with most of the interior and furnishings kept intact. Interesting location to visit and gives you an insight into Chiang and Madam Chiang's personal life. You're not free to wander around yourself and go with a tour guide, but be aware that I don't think they offer an English language tour. Please also note that photography is not allowed inside the main residence building. Worthwhile visit if you're in the area, but I wouldn't go out of my way unless you're a history buff or big Chiang Kai Shek fan.