Above there are two shops, one which has more artistic Spanish pieces (pottery, crystal bonsai trees, blown glass) and the other has a lot of typical spanish pottery in bulk....
THE SECRET...
is in the the second one. Downstairs, there is a huge old wine cellar where you can order very fine glasses of wine, and sit on very high stools drinking exquisite wine from very large glasses (large to allow the red wine to breathe properly), and eating expensive jamón and cheeses.