Three of the greatest residential Modernista buildings in Barcelona stand along the single block of Passeig de Gràcia between Carrer del Consell de Cent and Carrer d’ Aragó. Architecture critics call it the Mançana de la Discòrdia (Block of Discord), an allusion to the mythical Judgment of Paris over which of three goddesses is the most beautiful. Tourism promoters call the same group the Quadrat d’Or, or “Golden Quarter,” which at least points out that they are all wonderful. Casa Amatller is the masterpiece by Josep Puig i Cadalfach. This Modernista home designed in 1900 reflects the architect’s attachment to northern European Gothic decoration. That makes it a striking contrast to the Gaudí-designed Casa Batlló (see below) next door. Puig i Cadafalch made extensive use of ceramics, wrought iron, and fanciful sculptures. The original Gothic Revival interior is now the headquarters of the Institut Amatller d’Art Hispanic, but the library is normally the only part of the building open to the public.