dug a concrete slab which prohibits travel. the largest secret facility of the ussr is the anti-nuclear bunker 1180

1180 abandoned active apocalypse armageddon army biohazard bomb building bunker command cool danger decay deepest digger empty entry extreme fear floors freedom history interesting interior legend metal meters military moldova nuclear olishkany radiation region rust scary secret shelter stalinist stalker survival survivor top tourism travel unfinished union ussr