Great Altar of Hercules
Rome, Italy
The Great Altar of Unconquered Hercules (Latin: Herculis Invicti Ara Maxima) stood in the Forum Boarium near the Tiber River in ancient Rome. It was the earliest cult location of Hercules in Rome, possibly originally dating as early as the 6th century bc. Its foundations possibly lie beneath the present church of Santa Maria in Cosmedin in Rome, Italy.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).