One of the strange but also lovely things about living in Spain is that one can drive in just about any direction for 40 minutes or so and eventually hit a town with some sort of ancient castle or church or palace. Sometimes all three. Occasionally all three are combined into one.
In this case, we were in the city of Guadalajara simply to go for a drive and came across this beautiful purple domed cathedral. It was in the middle of some sort of school campus, but I don't really know much more beyond that.