The wooden ceiling covering the central hall and the side aisles was remarkable. The oak wood of the roof was lacquered and decorated in the resplendent colours of silver, white, yellow and black. In the concave, blue-coloured border, there were inscriptions in Greek characters which made the cover even more elegant. In the central aisle, the roof framework is reminiscent of St Peter’s ship leading the faithful to salvation. Those who entered the Cathedral, looking upwards, could also admire another peculiarity: the Dromico roof, a sort of wooden walkway that allowed for the viewing, control and maintenance of the entire aisle.