Two vignettes of Cupids or genii playing ancient games. . Two vignettes of Cupids or genii playing ancient games. Above, three cupids play on a two-wheeled chariot or Birotum as if rehearsing for the Circus. Below, three genii play a game of hide and seek. Copperplate engraved by Tommaso Piroli from his own Antichita di Ercolano (Antiquities of Herculaneum), Rome, 1789.