The museum features many things from Studio Ghibli's works. For example, young children can go and play inside a life sized plush of Catbus. A robot stands in the grounds, and the exclusive short film and sequel to My Neighbor Totoro, Mei and the Kittenbus, can be seen.
You can buy tickets online, in the US or in Japan:
For you, an Itlian guy explains how to buy tickets in Japan (with English subtitle):