The City Below

Anyone who walks through Soma long enough will encounter a deep fissure in the earth. Those brave enough to descend find themselves in a labyrinthine ruin running throughout the land. This is the City Below, an ancient metropolis whose original name is now lost to time.
The entire cit complex lies in a massive cave system. On the ceiling dwell large glowing insects that form constelations. The city itself if filled with ruined temples, parks, docks and arenas. No living thing resides in the city below; a negative energy pervades the area, sustaining a massive population of undead.

Type

Megastructure, Land based