We have one too...
in the rental house we own that our son now lives in... it's a concrete block tomb-like box including a block ceiling, built in one corner of the basement, but no furnishings at all were in there when we bought the house from the son of the original owner, an IBM engineer. It does have water piped in, but that's it. There's a date "1961" written in the mortar, same date as the one there...'61 was an interesting year, 6th grade and remember the duck & cover drills. We use it as a fire-proof storage area.
That powdered food in a can looks disgusting...