One of Europe's strangest residential buildings, Casa Batlló (built 1904–6) is Gaudí at his fantastical best. From its playful facade and marine-world inspiration to its revolutionary experiments in light and architectural form (straight lines are few and far between), this apartment block is one of the most beautiful buildings in a city where the architectural stakes soar sky-high.
Locals know Casa Batlló variously as the casa dels ossos (house of bones) or casa del drac (house of the dragon). It’s easy enough to see why. The balconies look like the bony jaws of some strange beast and the roof represents Sant Jordi (St George) and the dragon. The latter was built to look like the shape of an animal’s back, with shiny scales – the 'spine' changes colour as you walk around. If you stare long enough at the building, it seems almost to be a living being. Before going inside, take a look at the pavement. Each paving piece carries stylised images of an octopus and a starfish, designs that Gaudí originally cooked up for Casa Batlló.
When Gaudí was commissioned to refashion this building, he went to town inside and out. The internal light wells shimmer with tiles of deep-sea blue. Gaudí eschewed the straight line, and so the staircase wafts you up to the 1st (main) floor, where the main salon looks on to Passeig de Gràcia. Everything swirls: the ceiling is twisted into a vortex around its sunlike chandelier; the doors, window and skylights are dreamy waves of wood and coloured glass. The same themes continue in the other rooms and covered terrace. The attic is characterised by Gaudí trademark hyperboloid arches. Twisting, tiled chimney pots add a surreal touch to the roof, while the back terrace feels like a kaleidoscopic fantasy garden in miniature, with flowerpots taking on strange shapes and over 300 pieces of trencadís.