I’d love to visit the upcoming Yayoi Kusama Museum in Shinjuku, opening in October — not only to take in her work, but the building itself looks quite nice. You’ll find more details in this Spoon & Tamago post.
On a related note, here in Montreal we live near the Musée des Beaux Arts, and this summer they’ve set up an outdoor collection along Sherbrooke street, and we’re lucky enough to have a piece by Kusama near our place (pictured below).