Wherefrom?

Mana Island, Croatia. It sits atop a cliff. The entire island is all rocks. (and I slipped on those rocks, fell, and almost rolled off that cliff! That turned out just fine though, because we - my 2 friends and I - got to have a private audience with the captain and crew of the boat as they First Aided me -- including drinks! )

Neat pic, juices the imagination.

If you ever get the chance, you should go to Croatia - Roman ruins everywhere, and it is not too touristy either.

But I think this structure was actually erected in 1959 for a movie called 'As the Sea Rages'

Roman ruins I would enjoy though I don't see Croatia as a destination in the foreseeable future.