For centuries, the waterfront resort of Baiae on the Bay of Naples was the stomping ground of Rome's rich and famous. Located around 150 miles south of the capital, many of Rome's wealthiest citizens, including several emperors, built villas there to escape the scorching city heat and take in the area's sulfurous waters. However, most of the site today lies submerged beneath the sea and is preserved as a spectacular underwater archaeological park, as seismic and volcanic activity has caused the coastline to sink as much as 30 feet. Recently, according to a report by Finestre sull'Arte, a team of...