It is located at the Kassandra peninsula, next to the village Kallithea, while it is considered as one of the most significant archaeological findings of the region. It was discovered by mistake in 1969, during the building process of a hotel on the spot.
Excavations and findings showed that it was a sanctuary of the Egyptian God Ammon Zeus, founded at the end of the 5th century BC. During the second part of the 4th century, the temple expanded with columns of Dorian style. While at Roman times parts of the temple were used by Romans to build another temple of Roman Gods. It was finally closed and destroyed by the emperors of the Byzantine Empire.