Casa Batlló is one of Barcelona’s most arresting landmarks, its shimmering facade a swirl of blue-green mosaic, bone-like balconies and a roof often likened to a dragon’s back. Antoni Gaudí transformed an existing building for textile industrialist Josep Batlló, completing the remodel in 1906. It stands on Passeig de Gràcia’s Block of Discord, where competing Modernista architects created a remarkable cluster of buildings.
Inside, the curves continue through carved woodwork, sculptural ceilings and a staircase whose handrail evokes a creature’s spine. A central light well, tiled in blue that grows darker towards the top, helps distribute daylight through the building. The Noble Floor offers a glimpse of the Batlló family’s former home, while the rooftop brings visitors close to the tiled dragon spine and colourful chimney stacks.
The building’s forms invite interpretation: the roof is often associated with the dragon defeated by Sant Jordi, Catalonia’s patron saint. Casa Batlló is also part of the UNESCO-listed Works of Antoni Gaudí. Book tickets online ahead of time, particularly in high season, and consider a weekday morning for a quieter visit. Allow time on the rooftop as well as inside; the details reward a slower look.