Shelter

On my hike today I saw this shelter. It was so well hidden that I can't remember I ever saw it in the 19 years that we live here.
I think originally it was a barn, but through the years it must have been turned into a shelter. At least cattle or sheep can't reach it anymore, too much overgrown. But human beings still can go there, by accident or if they know where it is.
Thanks to Marlieske for hosting the Derelict Sunday challenge.