Located at No. 43 Passieg de Gracia in the L'Eixample district of Barcelona, Casa Batllo is Gaudi's contribution to the trio of Modernista buildings that make up the Manzana de la Discordia area, along with Lluis Domenech i Montaner's Casa Lleo Morea and Josep Puig i Cadafalch's Casa Amatller.

Commissioned by the textile industrialist Josep Batlló i Casanovas and built between 1898 and 1906, the Casa Batllo is based around the theme of St. George and the Dragon, with the blue/green tiled roof resembling the scales of a giant lizard. The windows and their assoiated balconies are hemmed in behind wrought iron railings that look like sharks jaws. The entire front facade is seemingly randomly splashed with small clusters of irridescent tiles.The pillars that snake up the front of the building are oddly skeletal in their appearence, and have earnt the building its alternat name - 'La Casa dels Ossos' or 'The House of Bones'

Unfortunately I have no idea as to the interior of the building as it is a private residence, and is therefore not open to the public, shame really.....