Learn more about the rivalry between the three foremost architects of the Modernisme movement at the beginning of the 20th century, Gaudí, Puig i Cadafalch, and Domènech i Montaner. Discover two of the most famous buildings on Passeig de Gracia with your guide. This street was once known locally as the "Block of Discord", where a series of buildings represented the unique style of each of three architects.  First, benefit from skip-the-line access to Casa Batlló, a UNESCO World Heritage Site designed by famed architect Antonio Gaudí. Explore the Noble floor, museum, and the loft as you discover the architectural elegance of the building.  Then, visit one of the most exclusive chocolate boutiques in the city. Enjoy tasting some artisanal chocolate, before continuing the tour with a visit to La Pedrera - Casa Mila, designed by Gaudí. Skip the line at the entrance and enjoy a guided tour to the rooftop, where you can admire beautiful panoramic views of the entire city.