The Zhu Zin trading post
The fictional city of Zhu Zin is a location in Earthrealm from Mortal Kombat: Conquest, within the city is the Reyland trading poste, that was owned by Baron Reyland and was later passed on to Kung Lao and his friends Siro and Taja by Jen Reyland after the Baron's death. Zhu Zin lays at the center of all realms and makes it the perfect place to open portals to other realms, Shao Kahn uses the the underworld of Zhu Zin to supply him with a steady supply of slaves to work in the Cobalt Mines. Zhu Zin's underworld was originally controlled by the Black Dragon, until they were defeated by Kung Lao and his friends.