We were invited to tour the Petit Castles earlier this year, we went on a guided tour with the owners permission. Trespassing without permission is NOT ALLOWED. These castles were built in the 1920?s I believe. One is a French style and the other is German. They were supposed to be the center of a Disney style playground.
Here is a site with more info: They did not have full access so they don’t have many photos. I did have full access so I have over 50 photos of the Petite Castles