Caesareum
A caesareum was a temple devoted to Imperial cult. Caesarea were located throughout the Roman Empire. In the city of Rome, a caesareum was located within the religious precinct of the Arval Brothers. In 1570, it was documented as still containing nine statues of Roman emperors in architectural niches. These are all lost, but the base for the statue of Marcus Aurelius survives, and altogether the inscriptions of seven of the nine are recorded in volume 6 of the Corpus Inscriptionum Latinarum.
One of the most prominent of the caesarea was the Caesareum of Alexandria, located on the harbor. During the 4th century, after the Empire had come under Christian rule, it was converted to a church.
Read more about this topic: Ancient Roman Temples