The Sunken City is an ancient underwater city which used to be part of the Atlantean Empire.
History[]
The Sunken City used to be an Atlantean city, built on a mountaintop to try and avert the inevitable end during the centuries which saw what remained of the continent after the Great Earthquake slowly sink into the ocean. By the 1950's, it had sunken quite deep beneath the sea, only getting artificial 'daylight' thanks to a thick layer of glowing fish separating it from the topmost layers of the sea. However, it was still inhabited, by the Water People, mutated fish-like descendants of the city's original inhabitants, who believed their city to be Atlantis itself.
Behind the scenes[]
The Sunken City appears in the 1954 comic story Secret of Atlantis.