Passeig de Gràcia and Eixample Walk

Walk along Passeig de Gràcia to see Barcelona's finest modernist architecture. **The Route:** Stroll from Plaça Catalunya to Diagonal, passing Casa Batlló, Casa Amatller, and La Pedrera. **Dog-Friendly:** Wide sidewalks, shaded sections, and many café terraces for stops. **Architecture:** The Manzana de la Discordia block has three competing modernist buildings.