Three hours on foot: La Rambla, Les Punxes, and Sagrada Familia

Three hours walking through the Eixample district with a guide and a small group, following the route from the early Modernism to the work that Gaudí did not complete. The meeting point is on Carrer de Fontanella, next to the Movistar Centre. From there, you walk up Passeig de Gràcia to the "Manzana de la Discordia" (Block of Discord), the block where three architects built side-by-side, and where you can best see how they differed from each other. You're guided past Casa Amatller, which belonged to a family of chocolatiers, Casa Batlló, and La Pedrera. Along the way, you pass Casa de les Punxes, where the guide tells the legend of Sant Jordi, the patron saint of Barcelona. The tour ends at the Sagrada Família. The group is small, so the explanations are easy to hear, and you can ask questions without waiting your turn. It's suitable for those interested in architecture as well as those who are simply curious.