Roof detail of Casa Batllo, designed by Antonio Gaudi, UNESCO World Heritage Site, Passeig de Gracia, Barcelona, Catalunya, Spain, Europe

travel destination photography vertical roof casa batllo unesco world heritage site passeig de gracia barcelona catalonia spain europe outdoors day dayime national landmark building exterior architecture modern place of interest ornate traditionally spanish nobody sky blue tile pattern decoration roof traditionally spanish city life creativity floral pattern colour image colour color image color outside travel destinations travel architectural no one no one landmark unesco world heritage site unesco world heritage sites unesco world heritage site world heritage sites arch arches arched cities tradition traditional typically spain spain culture stereotypical traditional culture traditionally stereotypically spain traditionally spain