News View All Fortress and the City. 29 scale models. Opening ceremony News Fortress and the city Exhibitions The exhibition Fortress and the City. 29 scale models, organised by Fundación Juanelo Turriano, opened on 29 September at Madrid’s Centro Conde Duque. Director General of Libraries, Archives and Museums Emilio del Río Sanz, Foundation President Pedro Navascués Palacio and Director Bernardo Revuelta Pol, the exhibition curators, participated in the ceremony. The presentation was followed by a guided tour.