In the same vein as the "cool ancient names" thread in this forum 
I always liked the regional name "Lacedaimon". (Λακεδαίμων
.
The area was named after the mythical Spartan king of the same name
Also the ancient Aetolian city with the name Metropolis sounds nice, not sure if it was quasi-generic or not but afaik it was the only such named city of the era i looked into (Peloponnesian war).
Kolophon as well, which is argued to mean "pinnacle", and i have read that some sources attribute the name of that Ionian (region in the western coast of Asia Minor, directly above Caria) city to its cavalry which was supposed to be undefeated and served as the pinnacle of what the city brought to each conflict.

I always liked the regional name "Lacedaimon". (Λακεδαίμων

The area was named after the mythical Spartan king of the same name

Also the ancient Aetolian city with the name Metropolis sounds nice, not sure if it was quasi-generic or not but afaik it was the only such named city of the era i looked into (Peloponnesian war).
Kolophon as well, which is argued to mean "pinnacle", and i have read that some sources attribute the name of that Ionian (region in the western coast of Asia Minor, directly above Caria) city to its cavalry which was supposed to be undefeated and served as the pinnacle of what the city brought to each conflict.