<Tr> <Th> Related </Th> <Td> Marcus Vipsanius Agrippa, Hadrian, Apollodorus of Damascus </Td> </Tr> <Tr> <Td_colspan="2"> Pantheon </Td> </Tr> <P> The Pantheon (/ ˈpænθiən / or US: / ˈpænθiɒn /; Latin: Pantheum, from Greek Πάνθειον Pantheion, "(temple) of all the gods") is a former Roman temple, now a church, in Rome, Italy, on the site of an earlier temple commissioned by Marcus Agrippa during the reign of Augustus (27 BC--14 AD). The present building was completed by the emperor Hadrian and probably dedicated about 126 AD . He retained Agrippa's original inscription, which has caused confusion over its date of construction as the original Pantheon burned down, so it is not certain when the present one was built . </P> <P> The building is circular with a portico of large granite Corinthian columns (eight in the first rank and two groups of four behind) under a pediment . A rectangular vestibule links the porch to the rotunda, which is under a coffered concrete dome, with a central opening (oculus) to the sky . Almost two thousand years after it was built, the Pantheon's dome is still the world's largest unreinforced concrete dome . The height to the oculus and the diameter of the interior circle are the same, 142 feet (43 m). </P>

What was the pantheon in rome used for