A design museum in Tokyo Midtown created by fashion designer Issey Miyake and architect Tadao Ando.
If you are in the area be sure to visit this traditional house and garden (it’s close to the Daikanyama station). Right after you can follow the street downhill and you’ll end up at the Nakameguro river.
I think this is my favorite museum in Tokyo. It is not too huge, so you see everything easily and the garden is quite a contrast to the city.