© Studio Tomás Saraceno

As if to mark the absolute center that Cerdá had in mind for his Eixample, the tower built by Jean Nouvel on the Plaça de les Glòries Catalanes has become one of the icons of Barcelona. An observation deck at the top has now opened to the public in which visitors can also appreciate an installation by the Argentinian contemporary artist Tomás Saraceno. Titled Cloud Cities, it is a web of suspended pods where one can sit and enjoy magnificent views of the city.[+]