Zalg City

Zalg City is a city located in the Zaitopian province of East Zaitopia. A Silarc city carved directly into the Sawtooth Mountains, it's almost entirely subterranean and powered by geothermal energy. As is typical for a Silarc-built metropolis, instead of buildings and high-rises there are tunnels, tunnels and more tunnels, leading to thousands of chambers used as homes, places of business, etc.