Casa Batlló, or casa dels ossos (house of bones)or casa del drac (house of the dragon)as the locals call it, is a true masterpiece. It was build between 1904-1906. Sinds 2002 it's open to the public.
The facade, sprinkled with bits of blue, mauve en green tile, and studded with wave-shaped window frames and balconies, takes your breath away. The colors are stunning. The internal light shaft and staircase have tiles of deep sea-bleu. Downstairs they are white and making your way to the top they chance to dark bleu. The incredible roof with its twisting tiled chimneys and dragonshaped rooftop is overwhelming.