St Peters Basilica Vatican City. Constructed started in 1506 and ended 1626 renaissance style was mainly designed by Lorenzo Bernini and Bramante and Michelangelo and Carlo Maderno.  By Catholics as the most important of all churches. In addition is the largest of all catholic/Christian churches in the world. The Basilica named St Peters; is considered the resting place of the apostle Peter one of the 12 disciples of Jesus. St Peters Church has resided on this ground since the period of the Emperor Constantine.