The 55-ton boulder was originally part of a bluff 500ft above the Fountain City house, but became dislodged on April 24, 1995. Amazingly, the owners escaped unscathed. An eyewitness told local newspapers that he heard a 'train-like roar' before the boulder hit the house. One TripAdvisor reviewer recently wrote: 'The rock is truly something to see in person.'