A walking tour to visit Gaudi buildings in the city center such as Casa Milá La Pedrera, a beautiful and charming monument of great fantasy with its famous roof-top chimneys resembling medieval knights and the incredible Casa Batlló, an architectural gem with a mosaic façade and a tiled roof. And from outside other Modernist monuments such as the Houses Amatller with ornamentation of polychrome tiles and Lleo Morera in floral style.