Far East Bunker

In 1982, a bunker was built 350 kilometers away for the military of the Far East. In 1990, due to the high cost of maintenance, economics and the condition of the bunker itself, it was abandoned. As of November 1992, the bunker was in a very terrible state of destruction. In the period from January 1991 to November 1992, myths and legends about this bunker circulated in the cities of Vladivostok and Khabarovsk; your task is to refute or confirm all of this.