The design of the extant building is sometimes credited to the Trajan's architect Apollodorus of Damascus, but it is equally likely that the building and the design should be credited to emperor Hadrian's architects, but not Hadrian himself as many art scholars once thought. Since the 7th century, the Pantheon has been used as a Catholic church. The Pantheon is the oldest standing domed structure in Rome. The height to the oculus and the diameter of the interior circle are the same, 43.3 metres (142 ft).

The building is circular with a portico of three ranks of huge granite Corinthian columns (eight in the first rank and two groups of four behind) under a pediment opening into the rotunda, under a coffered, concrete dome, with a central opening (oculus), the Great Eye, open to the sky. A rectangular structure links the portico with the rotunda. Though often still drawn as a free-standing building, there was a building at its rear into which it abutted; of this building there are only archaeological remains.

In the walls at the back of the portico were niches, probably for statues of Caesar, Augustus and Agrippa, or for the Capitoline Triad, or another set of gods. The large bronze doors to the cella, once plated with gold, still remain but the gold has long since vanished. The pediment was decorated with a sculpture — holes may still be seen where the clamps which held the sculpture in place were fixed.

• Address
  Piazza della Rotonda, Pigna

• Opening hours
  Mon-Sat 09:00 - 19:30 , Sun 09:00 - 17:30
• Phone
  06 683 00 230

• Transport

By Bus
Largo di Torre Argentina

By Underground
Largo di Torre Argentina

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