The sourced background on Pantheon, Rome.

The Pantheon is an ancient 2nd century Roman temple and, since AD 609, a Catholic church called the Basilica of St.

The Pantheon is an ancient 2nd century Roman temple and, since AD 609, a Catholic church called the Basilica of St. Mary and the Martyrs in Rome, Italy. It is perhaps the most famous, and architecturally most influential, rotunda.