Casa Mila, Casa Milà, La Pedrera, atrium, architect Antoni Gaudi, UNESCO World Heritage Site Casa Milà, Catalan modernista architecture, Art Nouveau, Eixample, Barcelona, Catalonia, Spain

culture art nouveau metropolis sight unesco world cultural heritage nobody courtyard architecture europe city facade window unesco architect low angle view casa mila catalonia landmark antoni gaudi building exterior culture travel spain urban scene barcelona day landmark travel destination outdoors la pedrera modern national landmark city mediterranean countries courtyard atrium