In the Shiga Prefecture of Japan, Endo Shuhei Architect Institute designed Bubbletecture M, this stunning kindergarten. Octagonal rooms are connected by concrete boxes, all of which are covered by a domed roof made of wooden beams and hexagonal metal fittings.  Photo 8 of 10 in More Favorite Play! Spaces by Miyoko Ohtake

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In the Shiga Prefecture of Japan, Endo Shuhei Architect Institute designed Bubbletecture M, this stunning kindergarten. Octagonal rooms are connected by concrete boxes, all of which are covered by a domed roof made of wooden beams and hexagonal metal fittings.