Things to see
The Pantheon is composed of three different geometric forms. First, it has a rectangular building along with a porch with a triangular pediment supported by 16 columns. Then it is composed of a cylinder covered by a huge dome of 43 meters in diameter and in which can be seen an oculus that lets daylight into the building.
The Pantheon was a temple first dedicated to Jupiter then to Mars Ultor, then to Venus, after that to Julius Caesar and finally to all gods before Pope Boniface IV decided to dedicate it to Saint Mary of the Martyrs. The temple was given by the Byzantine Emperor Phocas to Pope Boniface IV in 609, who converted it into a Catholic church. This conversion saved the Pantheon from destruction. The Byzantine Emperor Constans II removed the bronze statues in 663 A.D.; the ones which represented the gods and giants’ fight were destroyed altogether. Pope Gregory IV later dedicated the temple to all Saints.
Nowadays this sanctuary is the resting place of two Italian kings: Victor Emmanuel II and Umberto I.