Juan Carlos Ortega comes today in the mosque of Cordoba to find his invisible half. Gabriel Rebollo, conservative architect reviews the history of this building built during 1200 years old. The historical context of Al-Andalus Eduardo Manzano explains it, Director of Human and Social Sciences CSIC. The Arabist epigraphist María Antonia Martínez and we read the inscriptions on the stones and archaeologist Peter Ivory, that has been excavated for years in the building, talks about the latest discoveries. Monica Ruiz brings us closer to an invisible, the orientation of the mosque, not Mecca. We also visited, Medina Zahara, the archaeological and museum.