Jim Clark of Northumberland, England spent 3 decades trying to get his lawn to grow. He seeded it, fertilized it and watered it year after year after year, but to no avail. The dirt remained and grass just absolutely refused to grow. After 30 years, Clark finally decided enough was enough and dug up his entire lawn.
He discovered a concrete bunker built by the previous owner, apparently intended to withstand Nazi bombs. Jim had lived in the home for 33 years and never found a single trace of this historic bunker until now!