The Quadrat d'Or (Quadrant of Gold) is an area of the Eixample district renowned for its Modernist architecture. This area is bordered by the Plaça de Catalunya, the Avinguda de la Diagonal, the Passeig de Sant Joan, and Carrer de Muntaner.

 In this area, the exceptional avant-garde buildings were inspired by the work of Antoni Gaudí and constructed in the late 19th and early 20th century. The main road through it is the Passeig de Gràcia. Different architects made their mark on the neighborhood, and the result is a diversity of the Modernist style.

 A veritable open-air museum, the Quadrat d'Or offers delightful surprises every step of the way. Visitors discover interesting details of ceramic art, stained-glass windows, wrought ironwork, decorative reliefs, mosaic, and statues.