Serapeum of Alexandria
Alexandria, Egypt · built -286
The Serapeum of Alexandria was an ancient Greek temple built by Ptolemy III Euergetes (reigned 246–222 BC) and dedicated to the Greco-Egyptian syncretic god Serapis, made the protector of Alexandria, Egypt. The site was heavily plundered by Christians in the late 4th century. It housed the daughter library of Alexandria.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).