Casa Batllo, a modernist building by Antoni Gaudi, UNESCO World Heritage Site, on Passeig de Gracia, Barcelona, Catalonia (Catalunya), Spain, Europe

travel destination photography horizontal colour image building exterior architecture europe tree day outdoors low angle view unesco world heritage site unesco barcelona catalonia catalonia spain spanish culture casa batllo international landmark famous place design art nouveau modern no people passeig de gracia window ornate facade street light color image colour color outside tourist destination travel architectural nobody no one no one low angle from below looking up landmark place of interest unesco world heritage sites world heritage site world heritage sites typically spanish traditional culture tradition traditional traditionally spanish european antoni gaudi