The silhouette of a city and landmark architecture as a marketing, tourism and economic tool for major European capitals? Barcelona, from the Agbar Tower to the 22@ creative district[La silhouette d'une ville comme un outil marketing, touristique et économique pour les grandes capitales européennes ? Barcelone, de la Tour Agbar au district créatif 22@]

The object of this communication is to highlight the expression, "silhouette of the city" different from the skyline or general panorama, this from our field of study, Barcelona, ​​with the 22@ district and its emblem: the Agbar Tower by architect Jean Nouvel. Our general problem is based on understanding when an architecture becomes symbolic and worthy of being inserted into the visual, literary, tourist and commercial identity referents of a city. Our reasoning breaks down into three parts. In conclusion, the association of actors and complementary vision of what a signature architecture should be is undeniably at the origin of the conceptualization and dissemination of symbolic architecture according to economic, cultural and tourist imperatives. This must deal with the architectural past of the city and its complex temporalities. The gaze of the tourist also intervenes in the construction of a symbolic architecture and town planning. Throughout our development, we have drawn parallels with Moscow, Milan, Seville, Los Angeles, and Shanghai.