What was the healing temple located on Tiber Island?

The healing temple located on Tiber Island was the Temple of Aesculapius. This temple was dedicated to Aesculapius, the Roman god associated with healing and medicine, who was often represented as a serpent or a man with a staff. The temple served as a center for healing and had an important role in the ancient medical practices of Rome.

Tiber Island itself became an area associated with healing, especially after a plague struck Rome in the second century BCE, leading to the establishment of this temple as a sanctuary for the sick. Pilgrims would visit to seek cures and guidance from the deity.

The other options refer to significant Roman sites but do not relate to healing: Mamertinum was a notorious prison, the Temple of Jupiter Optimus Maximus was the most important temple dedicated to Jupiter, the chief Roman god, and the Pantheon is a magnificent temple dedicated to all the gods. None of these served the specific purpose of healing as the Temple of Aesculapius did.