Within the Neapolitan program of metro stations commissioned to prestigious international architects, the architect has corresponded the one of Toledo, with a satellite access in the center of the Quartieri Spagnoli neighborhood. The most outstanding feature of Toledo is the immense crater that connects the level of the square with that of the great hall located about 38 meters below. The final section of Avenida Diaz, located on the station, becomes a pedestrian plaza, where, among other functions, the current market is sheltered by a forest of rigid umbrellas. A particular attraction of the project is the close collaboration with prestigious plastic artists William Kentridge, Bob Wilson, Francesco Clemente, Ilya and Emilia Kabakov, Shirin Neshat, and Oliviero Toscani who have been invited.