Passeig de Gracia / Passeig de Gràcia is one of the main streets of the city of Barcelona and one of the most famous in Europe, due to its tourist importance, commercial areas, businesses and a great showcase of outstanding works by the architects Antonio Gaudí and Lluis Domènech i Montaner, declared a World Heritage Site. Located in the central part of the city, in the bourgeois Eixample district.