 Above them the roofs and domes of heavenly Jerusalem (or, in another interpretation, the churches built by the emperor Constantine in Jerusalem) are depicted.Above Christ stands a large jewel encrusted cross on a hill (Golgotha), as a sign of the triumph of Christ, amidst the Christian symbols of the Four Evangelists.These iconographic symbols (angel, lion, ox and eagle) are the oldest still existing such representations of the Evangelists.