- The Baldachin (baldaquin) by Gian Lorenzo Bernini (1598-1680)Bernini's first work at Saint Peter's Basilica was to design the baldacchino; a pavilion-like structure 28.74 metres tall and claimed to be the largest piece of bronze in the world; which stands beneath the dome and above the altar.- The Confessionby Maderno;1615-17A double ramp of stairs descends into an exedra closed by a beautiful balustrade and with multi-colored marble walls and floor. The Confession ('Confessio')opens under the center of the dome. This underground church preserves the tomb of St. Peter; and is really the 'heart of the Basilica'.(Saint Peter's basilica; basilique Saint-Pierre; Petersdom)Vatican 2019