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Credit: University of Southampton
The sharpest look yet at an underwater medieval town dubbed England's "Atlantis" reveals that the lost city was once almost as large as the modern City of London, a major district in central London.
Medieval Dunwich was a thriving port in the Middle Ages. Major storms beginning in the 1200s swept the city out to sea and silted up the Dunwich River, choking off the Dunwich harbor. By the 1400s, Dunwich lost its perch as a major port. The city was abandoned, and over the centuries, the ruins continued to slip into the sea as the coast eroded.
[Full Story: Amazing Lost 'Atlantis' Survives Beneath English Sea]