A possible day on foot from the Raval to Sant Pau: seventeen Modernista façades seen from the street, with the time of day when each one is in the sun.

Seventeen stops from Ciutat Vella through the Eixample, following the three great architects of Catalan Modernisme: Antoni Gaudí, Lluís Domènech i Montaner and Josep Puig i Cadafalch. Palau Güell and Els Quatre Gats, the Palau de la Música, the Mansana de la Discòrdia, La Pedrera, the Casa de les Punxes, the Sagrada Família and, to finish, the Sant Pau hospital. Everything can be seen for free from the pavement, and each stop says whether the building can be visited and at what price. North-east-facing façades only get the sun in the morning, north-west-facing ones only in the afternoon: the walk also works split into two half-days.