I find the intricate sidewalks, roads, floors, etc fascinating. So much work has gone into the surfaces upon which we walk as we stroll through historical areas.  Enjoy the pictures below and marvel at the work that went into creating works of art that are trampled on by feet as MD tires every day.

A hallway in Alhambra.
At the exit from Alcazar Palace.
A street.
Inside Alcazar Palace.
Another floor in Alcazar Palace.
A garden path.
I would have loved to watch the construction of some of these surfaces.
Looks like a throw rug.
Simplicity.
3D.
Hopscotch anyone?
I took many more pictures, bbut I think this is enough to give you an idea of the surfaces I trot upon.