 The Temple of Bacchus is one of the best preserved and grandest Roman temple ruins; its age is unknown, but its fine ornamentation can be dated to the second century CE.The temple was probably commissioned by Roman Emperor Antoninus Pius (r. AD 138-161).No information was recorded about the site until a 4th-century Greek conquest, by which point the temple would likely have been closed due to the persecution of pagans in the late Roman Empire.