My previous posts of circular windows in Japan seem toi have been quite popular, so here are some more. This first one is in a garden fence at Garyu Villa in Ozu, Ehime.
This one is at the small local history museum on the island of Okunoshima in Hiroshima Prefecture.
Encho-en, a huge Chinese garden up in Tottori has many round windows....
This one is from a park shelter in Sakaiminato, also in Tottori.
This one is in Taishaku Gorge in Hiroshima...
An office building in Matsuyama, Ehime.