Don Quixote, Miguel de Cervantes
There's not much better than a really good book, and this one is one of the best. Adventure! Giants! A damsel in distress! Imagination times ten, and one of my favourite lines ever:
Finally, from so little sleeping and so much reading, his brain dried up
and he went completely out of his mind.
If you're looking for Quixote's Spain, head to Consuegra, site of the famous giants (known to unimaginative people as windmills).
I have no idea if there are any restaurants there worth visiting - I'd take a bocadillo (a sandwich on baguette) and eat al fresco - lots of great places to sit and enjoy the scenery. And I suggest you visit on the way to or home from someplace else. It's a barren, windswept, romantic landscape, definitely worth seeing, but once you've seen the windmills, you're done.