There are many art museums in Tokyo!
The National Art Center in Nogizaka Station is one of my favorites because of it’s beautiful building. it was designed by Kisho Kurokawa as he thinks a museum in the forest. You can enjoy sunshines through glass windows and you can find books, journals, exhibition, even library in the museum.
Mori Art Museum is located on the 53rd floor of the Roppongi hills. It is more modern than other museums and I enjoyed Another Energy Exhibition which focused on 16 female artists around the world.