Casa Batlló is a residential building constructed in the year 1877 in the Eixample district of Barcelona and restored by Antoni Gaudí
and Josep Maria Jujol in the years 1904-1906. The local name for the building is Casa dels ossos (House of Bones) because
of its exterior appearance. The goal of the architecture was to avoid straight lines completely, as in the case of
Casa Milà, which was completed later in 1912.

A common theory about the building is that the rounded feature terminating at the top in a turret and cross at the right in
this image represents the lance of Saint George, which has been plunged into the back of the dragon.