Perched on two hills (Fourvière and the Croix Rousse), between two rivers (the Saône and the Rhone) carrying a thousand years of history, Lyon deserves to be viewed from this height. A visit to the rooftop of the Basilica of Fourvière offers this opportunity. It is also an occasion to discover this mystical Romano-Byzantine fortress from a different angle; built in the 19th century for the glory of Mary, the highly detailed decoration is reminiscent of medieval religious art.