Gillette Castle State Park
Gillette Castle State Park is named for the castle that remains on the grounds. The structure was originally a private residence commissioned and designed by William Gillette, an American actor who is most famous for his portrayal of Sherlock Holmes on stage. Gillette lived here from 1919-1937.
Gillette designed a number of oddities inside the home, including 47 unique doors, each equipped with an external Steampunk-like latch intricately carved of wood. Trick locks made unlocking these doors a puzzle.
The structure also contains a secret door that allowed Gillette to swiftly, unexpectedly, and theatrically appear to welcome or startle his guests. A secret room is accessible only by a staircase revealed after pulling down a handle.