Stand on Passeig de Gràcia and Look Up at the House of Bones
Walk the Passeig de Gràcia in the Eixample and you will reach a stretch of houses so unlike one another that the block earned a nickname: the Illa de la Discòrdia, the Block of Discord. Four striking buildings by noted Modernista architects stand side by side here, and the rivalry behind them is part of the story. The chocolatier Antoni Amatller hired Josep Puig i Cadafalch to remake a building at Passeig de Gràcia 41; Francesca Morera responded by hiring Lluís Domènech i Montaner; and the textile industrialist Josep Batlló, whose house sat next to Casa Amatller, hired Antoni Gaudí in 1904 to put the others to shame.
What Gaudí gave him is the building you have come to see. Locals call it Casa dels ossos — the House of Bones — for its biomorphic, skeletal quality. The façade ripples with sinuous sculpted stone, irregular oval windows and tracery, and much of it is dressed in trencadís, a mosaic of broken ceramic tiles that moves from golden orange into greenish blues. Gaudí seems to have wanted to avoid straight lines altogether: "There are no straight lines or sharp corners in nature," he observed. "Therefore, buildings must have no straight lines or sharp corners." The roof is arched, likened to the back of a dragon, and a common theory holds that the rounded feature left of centre, ending in a turret and cross, is the lance of Saint George — Catalonia's patron saint — plunged into the dragon's back. In 2005 the building became a UNESCO World Heritage Site.
Climb Through the Light Well, the Loft and the Dragon's Back
The house was not built from nothing. It began as a classical building of 1877 by Emili Sala Cortés, one of Gaudí's professors, and when Josep Batlló bought it in 1903 the design made it hard to sell — the family bought it anyway for its position in the middle of the fashionable Passeig de Gràcia. Batlló first planned to tear it down; Gaudí convinced him a renovation would suffice, and the building was finished and refurbished in 1906. Inside, Gaudí completely changed the main apartment, expanded the central well to bring light to the whole building, and added new floors. As you move through the house, these are the spaces to linger in:
- The atrium, or light well. It delivers natural light to every corner of the house. The walls are tiled in different shades of blue with a diamond textile pattern, the blue more intense at the top, so that light is distributed evenly down the floors; wooden shutters on the windows open for ventilation or close against the weather. Gaudí wanted the bottom of the well to feel like the bottom of the sea, with the skylight reflecting off the ceramic tiles and into the windows.
- The loft. Once a service area of laundry rooms and storage for the building's tenants, it is considered one of the most unusual spaces: sixty catenary arches in white, of Mediterranean simplicity, forming what reads as the ribcage of an animal — some believe the ribcage of the dragon whose spine is the roof.
- The main apartment and the roof. The family residence Gaudí reshaped, and above it the arched roof with its turret and cross — the view back over the Block of Discord that explains the whole contest.
Look closely at the ground floor as you enter or leave: the tracery, the oval windows and the flowing stonework are where the building is at its most unmistakable.
How to Make the Most of Your Visit
Casa Batlló stands at Passeig de Gràcia 43 and is open daily from 9am to 10:30pm, with an approximate visit duration of one hour and fifteen minutes — enough for the main route, more if you stop to study the tilework. Because the house works its effect through light, the atrium and the blue-tiled well are at their most legible in daylight, so build your day around a daytime entry and leave the evening for the street itself.
Book ahead and choose your ticket by what you want from the house. Beyond the standard visit, the third floor — Gaudí's last original residence — has opened to the public through an exclusive tour that includes a gourmet culinary experience. A temporary exhibition, "Gaudí-Miró-Gomis: Deconstructed," runs at Casa Batlló Contemporary in cooperation with the Fundació Joan Miró and can be visited separately or combined with your visit. There are also "Magical Nights" evenings combining a visit with a drink and a concert, and "Street Escape: Gaudí and the Hidden Treasure," an outdoor escape room that takes you across Barcelona. The museum shop, the Simbòlic Casa Batlló Store, has been noted by Travel & Leisure among the world's best museum shops. If you would rather spend less, the Ruta del Modernisme run by the Modernisme Centre is a guidebook and discount-voucher book that takes you to the best Modernisme buildings in the city, and Barcelona's tourist offices offer a pack with discounted tickets to attractions including Casa Batlló and La Pedrera; all of these buildings can be seen from the outside for free.
The highlight not to miss is the descent or ascent through the light well — the one space where Gaudí's obsession with light and reflection is laid out around you, floor by floor.
What Else Is Close By
You are in the Eixample, and the Modernista city continues from here. Two more Gaudí works are within reach as onward ideas: Park Güell, in Gràcia, and the basilica of the Sagrada Família. Both are listed with Casa Batlló among the "Works of Antoni Gaudí" on the UNESCO World Heritage List, so they make a natural second chapter to the same day — or the same trip.
Start With a Date and a Ticket
Decide when you will be in Barcelona, then book your entry to Casa Batlló for a daytime slot so the atrium and the blue well are doing their work, and set aside an hour and a quarter at minimum. Add the third-floor tour or the Gaudí-Miró-Gomis exhibition if they appeal, and keep an evening free for the Passeig de Gràcia, where the Block of Discord is best understood by walking its length and looking up.