The Stories Of 13 Incredible Sunken Cities From History — And What’s Left Of Them Today

Published June 16, 2024
Updated January 22, 2025

The Sunken City Of Baiae And Portus Julius In Italy

Submerged Column At Baiae

Ruthven/Wikimedia CommonsA submerged column at Baiae.

Baiae was an ancient Roman town overlooking the Gulf of Naples that has been referred to as the “Las Vegas of the Roman Empire.” It was a place where the elite whiled away their time in luxurious villas, but today, those homes are up to 30 feet beneath the water’s surface.

Baiae once served as a getaway for the likes of Julius Caesar and Nero. It was where Julia Agrippina plotted the murder of her husband, the emperor Claudius, and where Hadrian took his final breath.

In 25 B.C.E., the poet Sextus Propertius wrote of the city:

But you must quickly leave degenerate Baiae;
These beaches bring divorce to many,
Beaches long the enemy of decent girls.
A curse on Baiae’s water, love’s disgrace!

However, the Roman land of decadence and excess wasn’t meant to last. Beginning in the fourth century C.E., volcanic and seismic activity splintered the city, pulling part of it into the sea along with all of its luxuries and pleasure palaces. With it went the Roman Empire’s biggest naval base, Portus Julius, which once housed the empire’s western naval fleet.

Nyphaeum

Ruthven/Wikimedia CommonsA statue stands beneath the water.

In the 1940s, as reported by The Guardian, Italian Air Force pilot Raimondo Baucher was flying over the former location of Portus Julius when he spotted “a strange ghost town” beneath the waves. Excavations began in 1959, and archaeologists have since uncovered marble statues, ancient baths, fountains, walls, and more.

Today, scuba divers can explore the ruins of the underwater city, though the statues have been moved to museums and replaced with reproductions.

author
Mark Oliver
author
Mark Oliver is a writer and teacher, and father whose work has appeared on The Onion's StarWipe, Yahoo, and Cracked.
editor
Cara Johnson
editor
A writer and editor based in Charleston, South Carolina and an assistant editor at All That's Interesting, Cara Johnson holds a B.A. in English and Creative Writing from Washington & Lee University and an M.A. in English from College of Charleston and has written for various publications in her six-year career.
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Oliver, Mark. "The Stories Of 13 Incredible Sunken Cities From History — And What’s Left Of Them Today." AllThatsInteresting.com, June 16, 2024, https://allthatsinteresting.com/sunken-cities. Accessed March 3, 2025.