As you probably know, there are all sorts of caves around France and Spain. The very best of them have Cave Paintings featuring local Critters, among them Rhinos! True, these paintings were done about 38,000 years ago, but their handywork still looks great. And Big!
They are not really paintings, but drawings in charcoal and ochre. On Limestone, which We gather likes to make caves in itself.
We never fail to be impressed. Very Nice Work, you Ancient People.