Emor

Emor is a sunken city located deep under the Earth's crust. The city is inhabited by a race of Mermen. The entrance to the city is located at an offshore reef near an Italian beach. The city was once a Roman seaport, until an earthquake occurred and the city sunk beneath the earth's crust, and eventually the Mermen moved in.

Appearance
The New Adventures of Superman
 * The Mermen of Emor