Gillette Castle has a quiet Hollywood pedigree. It was featured in the 1940 film “The Mark of Zorro” and later inspired the setting for the 1980s TV series “The Adventures of Sherlock Holmes.” More recently, it appeared in the Netflix series “The Haunting of Hill House” (the exterior made a creepy cameo). It’s the kind of place that feels like a film set, even when it’s empty.
Gillette Castle State Park: Visit Sherlock Holmes' Connecticut Castle
And yes, you can channel your inner detective. The park’s “Castle Quest” is a self-guided scavenger hunt for kids and adults. Solve puzzles hidden around the grounds, and you’ll earn a junior ranger badge. It’s a charming way to slow down and look at the details—like Gillette’s initials carved into stonework.
Practical tip: The best Instagram spot
Head to the front lawn at golden hour. The setting sun casts long shadows from the castle’s granite walls, and the river glows orange below. For a different angle, walk to the Boat House—a small, castle-like structure on the riverbank that Gillette used for ferry storage. It’s a five-minute walk down, and you’ll have the place to yourself on weekdays.
If you’re driving, park in the main lot ($10 out-of-state, free for Connecticut residents). Pro tip: bring cash—the automated machine sometimes rejects cards. And wear comfortable shoes; the gravel paths can be rough on sandals.
