I posted about this preschool in Kumamoto the other day:

https://www.facebook.com/Kumamotoi/posts/857061781033922

This article has a few more pictures of what appears to be a an extremely well-designed facility.

– Kirk

http://en.rocketnews24.com/2015/07/04/kumamoto-preschool-designed-to-become-a-giant-puddle-when-it-rains/