How does a pagan capital become the spiritual centre of Christendom—without tearing itself apart? In this episode, we explore the Christianisation of Rome through its buildings, images, and sacred spaces. From Constantine’s conversion and the Edict of Milan to the transformation of temples into churches, Rome remade itself by layering new faith onto ancient stone. We trace the rise of pilgrimage, relics, mosaics, and martyrs—and discover how Rome did not erase its past, but absorbed it, turning imperial space into sacred geography and giving the Eternal City a second life.