Don't miss La Rambla in Barcelona
http://en.wikipedia.org/wiki/La_Rambla,_BarcelonaAt the top of the La Rambla street is a big plaza. At the far side of the plaza, slightly to the right, is a multi story department store. On the top floor of the department store is an upscale restaurant where no English is spoken. In that restaurant they serve a Greek Salad that so good that you'll never in your lifetime find one that's better.