Uncovering the mysteries of Egypt's sunken city. In the fading days of the Pharaohs, the city of Heracleion was the gateway to Egypt an opulent and prosperous port city adorned with statues, sphinxes and home to the temple of Amun. But despite its importance, Heracleion was mysteriously wiped from the face of the Earth, after being consumed by the sea. This lost city lay forgotten beneath the waters of the Mediterranean until 2000 when archaeologists discovered the city s remains six kilometers off the Egyptian coast and only 10 meters under water. Pristinely preserved, it is an archaeological jewel; an ancient Egyptian city frozen in time. Produced for the BBC, this fascinating investigation follows a team of maritime archaeologists as they uncover glorious temples, statues, houses, and boats lying perfectly preserved beneath the sea, providing a unique snapshot of Egyptian life over 2,000 years ago. But what caused the city to plunge into the sea?