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The Temple of Hercules Victor ('Hercules the Winner') (Italian: Tempio di Ercole Vincitore) or Hercules Olivarius ((Hercules the Olive Branch Bearear) is a Roman temple in Piazza Bocca della Verità in the area of the Forum Boarium near the Tiber in Rome. It is a tholos, a round temple of Greek 'peripteral' design completely surrounded by a colonnade. This layout caused it to be mistaken for a temple of Vesta until it was correctly identified by Napoleon's Prefect of Rome, Camille de Tournon.