Casa Batllo, modernism design by Antoni Gaudi, UNESCO World Heritage Site, old town, Barcelona, Catalonia, Spain, Europe

casa batllo modernism design by antoni gaudi unesco world heritage site old town barcelona catalonia spain europe casa batlló barcelona spain antoni gaudí modernism architecture facade building ornate sculptures balconies mosaic tiles windows shutters green blue sky clouds city travel landmark tourist destination art design style culture history heritage catalan europe structure detail pattern color texture decorative intricate whimsical