stone walls

What is this?

 

IMG_9437_2018_0711_Spain_Santa Pau_1000x667

 

If anyone happens to stumble by my blog, sees this image and knows what it is… please tell me in a comment.

We were sauntering around Santa Pau, Spain, a medieval village in Catalonia about 1 1/2 hours north of Barcelona.  I peeked around a corner and noticed this, stopped and looked for a bit but couldn’t figure it out so snapped a quick photo and continued my meander.

Your guess is as good as mine.