The Illa de la Discòrdia or Mansana de la Discòrdia — "Block of Discord"; Spanish: Manzana de la Discordia — is a city block on Passeig de Gràcia in the Eixample district of Barcelona, Catalonia, Spain. The block is noted for having buildings by four of Barcelona's most important Modernista architects, Lluís Domènech i Montaner, Antoni Gaudí, Josep Puig i Cadafalch and Enric Sagnier, in close proximity. As the four architects' styles were very different, the buildings clash with each other and the neighboring buildings. They were all built in the early years of the 20th century.