Once again, I found a better link about 5 seconds after submitting this.

I though this was just a made up place in Killer 7.

I was looking for more info on the mine under this place and found this page, a lot more backstory

http://www.cabinetmagazine.org/issues/7/hashima.php

Yow.

They sure glossed over all those Chinese and Koreans who taken at gunpoint to the island and worked to death. ***** for cool abandon ruins.