A hole in the wall

I sure wish  I could provide some details around this shot, but I cannot.  I was wandering in Madrid, and was in the vicinity of the Prado Museum, which is a fabulous place.   I came across what seemed to be an ancient church, but of course the name escapes me.  The church was closed, and it was late in the day.  However, I did have the good sense to take this shot of a crumbling wall, so I guess the afternoon was not a total disaster, eh??