Casa Batlló (Photo 1 of 9)
Casa Batlló by Antoni Gaudí shown here across the street, is one of the most interesting buildings on Passeig de Gràcia, You can just see behind the tree the multi-coloured tiled building that stands out from all the others around it.
Gaudí's work is strongly influenced by colour, natural shapes, and the lack of straight lines - all of which make a very interesting building but also a difficult one to construct.
Address: Casa Batlló at 43 Passeig de Gràcia
Metro: Passeig de Gràcia