Portal Ruins

The Portal Ruins is a location near the 7k-7k intersection of the Overworld. It's characterized by a series of stone brick pillars in a rectangle surrounding what appears to be the ruins of a town/small city. Some foundations of small buildings are still recognizable, and in the middle of the site is a larger foundation that appears to be some kind of temple. Placed within the 'temple' is a nether portal decorated with some gold blocks. The portal was unlit upon discovery, but was lit by 7777 when he arrived. There is a small base nearby, inside a small mountain. Within is very basic survival gear and a small quarry. There are no signs or any information about who lived here or created it.

(If you know anything about who created this structure, please contact Historio or 7777)