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

travel destination photography vertical colour image europe indoors unesco world heritage site unesco barcelona catalonia catalonia spain spanish culture casa batllo architecture international landmark famous place design art nouveau modern no people passeig de gracia corridor white curved tiled rope color image colour color inside interior tourist destination travel architectural nobody no one no one 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