This is an image of Casa Batlló roof. Casa Batllo was restored by Antoni Gaudi ( my favourite achitectects of all time) and Josep Maria Jujol. It was built in 1877 and remodelled during 1904-1906. What interesting about this building is the designers trying to avoid straight lines on it. As one of the most 'Gaudi'-style building, Modernism could be identified in this building.