On entering the Basilica of San Vitale, the eyes are captured by the elevation and width of spaces, by the stunning mosaic decorations of the apse and by the baroque frescoes of the cupola. It is probably due to this upward thrust that a small and lesser-known treasure often goes unnoticed: a labyrinth is represented on the floor of the presbytery, right in front of the altar. Small arrows start at the centre of the labyrinth and lead towards the centre of the basilica, going through a winding path. In the early years of Christianity, mazes were often the symbol of sin and of a possible purification. Finding the way out of the maze thus represented an act of rebirth. Once followed the path of the labyrinth, the eyes may contemplate the altar of San Vitale and some of the most beautiful mosaics of Christendom.