A family’s extraordinary underground secret has come to light decades after a civil engineer began digging a hidden network of tunnels beneath his home in England. Now, the remarkable property is on the market, offering potential buyers a rare glimpse into a subterranean world that took more than 20 years to build.The property, located in Tilehurst, a suburb of Reading, England, features an underground complex spanning more than 1,300 square feet, with tunnels, storage rooms and even a hand-built railway. The network descends through four levels, reaching more than 50 feet below the surface.
