Time Out says
Officially opened on October 1, the world's first museum dedicated entirely to bewigged contemporary artist Yayoi Kusama hosts two exhibitions annually, focusing on Kusama's entire repertoire, including her ‘Infinity Net’ paintings, phallic sculptures and, yes, those legendary red polka dots. Note that entry is by time slot (six per day; the museum is open Thursday though Sunday) and that buying tickets in advance is essential - they're not sold on the door. Reserve yours through the museum's website.
We have a floor-by-floor guide to the Yayoi Kusama Museum – read it here.
107 Bentencho, Shinjuku-ku
|Transport:||Ushigome-Yanagicho Station (Oedo line); Waseda Station (Tozai line)|
|Opening hours:||11am-5.30pm (6 time slots daily) / closed Mon-Wed (except for holidays)|