Archaeological excavations in the 1950s and 1960s uncovered remains from many periods, in particular, a complex of Crusader fortifications and a Roman theatre. Other buildings include a temple dedicated to Caesar; a hippodrome rebuilt in the 2nd century as a more conventional theater; the Tiberieum, which has a limestone block with a dedicatory inscription. This is the only archaeological find with an inscription mentioning the name "Pontius Pilatus"; a double aqueduct that brought water from springs at the foot of Mount Carmel; a boundary wall; and a 60 wide moat protecting the harbour to the south and west. The harbor was the largest on the eastern Mediterranean coast.