Barcelona is organized into 10 administrative districts comprising 38 neighborhoods: Ciutat Vella with the Gothic old town and El Raval; Eixample with its Cerdà grid of octagonal blocks; Sants-Montjuïc with Montjuïc Park and the port; Les Corts with Camp Nou; residential Sarrià-Sant Gervasi; Gràcia with its bohemian squares; Horta-Guinardó on the slopes of Tibidabo; Nou Barris in the north; industrial Sant Andreu; and Sant Martí with the 22@ technology district. The districts of Nou Barris, Ciutat Vella, and parts of Sants-Montjuïc have the highest levels of residential vulnerability and risk of social exclusion, while areas of Collserola such as Vallvidrera and Horta have a higher risk of wildfires. In this urban Risk, Ciutat Vella is the historic central hub but is vulnerable, Eixample is the central corridor connecting all districts, Montjuïc is an elevated fortress with panoramic views, and 22@ in Sant Martí is a strategic economic territory. Controlling access from the port, Sants railway station, and the Ronda de Dalt and Ronda del Litoral ring roads gives you a logistical advantage for dominating the city.