The dawn of man’s cave: Man spends three years and $50,000 creating fantasy basement complete with sword rack, suits of armor and even a secret passage behind a bookcase
My French Retreat: The foundation was built on top of the escape tunnels of the old original Chateau as early 1160 and now the sealed tunnel / dungeons below the house. There maybe a connection to the other garage across the street as the cement slab was built on top of a gravel pit to fill up another tunnel connecting to the house. It was common during the olden days. Also the proximity of the house from the church may suggest that it was a part of the original ancient village around the church.