A secret bunker that was to accommodate Scotland’s parliament in the event of a nuclear war. It got decommissioned as recently in 1992.
Be careful the sat nav positioned it in the middle of a field, I chatted to a farmer nearby and he told me folk have still kept driving over the grass hoping to find it. Nevertheless its around the corner and is heavily sign posted, always wise to question your sat navs!
I didn’t have the courage to descend 100ft to check out the bunker so made do with the outside of the building.