The Mitsui family's immense collection of Japanese and Asian art sounds impressive in the catalog, but in reality the exhibition space is quite small and the Y1000 admission price seems rather steep considering how little you get to see. It might be worth it if you have free admission with a Grutto Pass, you're already in the area, and you have ten or fifteen minutes to kill.

At least the museum shop is well stocked, since the postcards and books on sale here are the only place where we'll get to see most of the collection. (Note that the museum is closed for weeks at a time between exhibitions, so check their website to confirm that they're open.)