The Pantheon (/ˈpænθiən/ or US /ˈpænθiɒn/; Latin: Pantheon, [pantʰewn] from Greek: Πάνθεον [ἱερόν], an adjective understood as "[temple consecrated] to all gods") is a building in Rome, Italy, commissioned by Marcus Agrippa during the reign of Augustus as a temple to all the gods of ancient Rome, and rebuilt by the emperor Hadrian about 126 AD.