In the centre of the crossing and directly under the dome of the Basilica 'Saint Peter' in Vatican, Rome, Italy, is dominating the High Altar (Papal Altar, Altar of the Confession), surmounted by 29m-high bronze baldachin, made by the Italian architect, sculptor and painter Gian Lorenzo Bernini, supported by four columns in shape of spiral, with the tomb of the apostle Peter underneath, 20 ft. below the floor level of the basilica.