Emperor Nero had a rotating dining room built.
(Archaeologists on a dig on Palatine Hill in Rome, Italy (where Roman emperors traditionally built their most lavish palaces) believe they have found the remains of the legendary rotating dining room which the Emperor Nero built to entertain his guests. According to the Roman historian Suetonius, who described the unique revolving room in his Lives of the Caesars, written about 60 years after Nero's death: "The chief banqueting room was circular and revolved perpetually, night and day, in imitation of the motion of the celestial bodies. Just imagine having a huge dinner and then sitting there - rotating day and night - ugh!)