High romance of the pulp-fiction variety is niftily shaped in City Beneath the Sea. The film stages a thrilling underseas 'earthquake' as a capper to the derring-do yarn laid in the West Indies.

But step aside, Atlantis, scientists have discovered a real Lost City beneath the waves ... after the Greek god of the sea, and it measures more than 60 metres high. Meanwhile, just northeast ...

Baiae was the Las Vegas of the Roman Empire – the place where the rich and powerful came to carry out their illicit affairs. However, over several centuries, the city slowly sunk beneath the sea.