JCWWCJ 13 has added a photo to the pool:
Source : https://www.flickr.com/photos/jeremiahchristopher/34733555216/in/pool-17918700@N00
Chateau de Rully, Burgundy, France – Built in 1180-1190
Source : https://www.flickr.com/photos/jeremiahchristopher/34733555216/in/pool-17918700@N00