Officially known in Italian as the Basilica di San Pietro in Vaticano, this 16th century Vatican City cathedral is considered to be the greatest church in Christendom, covering almost 6 acres and with a capacity of over 60,000 people.
Believed to be the burial site of Saint Peter, one of the twelve disciples of Jesus, it is also one of Catholicism’s holiest sites. Many popes and saints are buried in the grottos below. Moreover, it is considered architecturally to be the greatest building of its age.
Fittingly, it contains some of the premier masterpieces of Italian art history, including Michelangelo’s poignant Pietà, and many works by Bernini.