This central artery up through Gràcia would be a lovely stroll if the car and (worse) motorcycle din weren't so overpowering. (A tunnel would do the trick nicely.) However, many of the buildings along Gran de Gràcia are of great artistic and architectural interest, beginning with Can Fuster, at the bottom of Gran de Gràcia 2–4. Built between 1908 and 1911 by Palau de la Música Catalana architect Lluís Domènech i Montaner in collaboration with his son Pere Domènech i Roure, the building shows a clear move away from the chromatically effusive heights of Art Nouveau. More powerful, and somehow less superficial, than much of that style of architecture, it uses the winged supports under the balconies and the floral base under the corner tower as important structural elements instead of as pure ornamentation, as Domènech i Montaner the elder might have. As you move up Gran de Gràcia, probable Francesc Berenguer buildings can be identified at No. 15; No. 23, with its scrolled cornice; and Nos. 35, 49, 51, 61, and 77. Officially attributed to a series of architects—since Berenguer lacked a formal degree (having left architecture school to become Gaudí's "right hand")—these Moderniste masterworks have long inspired debate over Berenguer's role.