Another of Gaudí's masterpieces. It is at number 43 of Passeig de Gràcia, in the so-called 'Manzana de la Discordia' (a pun meaning Apple of discord), next to two other emblematic houses that compete in beauty. Its amazing roof resembles the skin of a reptile.

This building was Gaudí's first important project in Barcelona. It corresponds to a first stage this architect's style clearly influenced by the art of the Far and Middle East, as well as by the Hispanic-Muslim art (Nazarí and Mudejar). It is located in Carolinas 18-24.

Comissioned by the chocolate industrialist Antoni Amatller to the architect Josep Puig, it's adjacent to Casa Batlló and very close to Casa Lleó Morera, forming part of the so-called 'Manzana de la discordia', bone of contention, due to the rivalry between architects.