Connecticut keeps some wonderfully strange things behind ordinary-looking doors: classic movie monsters, thousands of candy dispensers, and the cramped compartments of a historic submarine. One famous building, meanwhile, is determined to keep its doors closed.
These five Connecticut oddities mix movie history, undersea exploration, campus mystery, and an actor’s unusually inventive home. A little planning helps, especially for the museum with limited opening dates and the castle’s scheduled tours.
1. Witch’s Dungeon Classic Movie Museum
Plainville, Connecticut
Connecticut’s classic movie monsters have a home in Plainville. At the Witch’s Dungeon, Dracula, Frankenstein’s monster, and the Creature from the Black Lagoon wait in carefully staged displays. The life-size figures celebrate the performers, makeup artists, and practical effects that gave old horror films their lasting personalities.
Cortlandt Hull began the attraction as a teenager in 1966, building figures with family help. Many use life casts or detailed performer measurements, with costumes and scenery tied to specific films. This is a labor of movie-loving craftsmanship, not a collection of generic Halloween decorations. Opening dates can be limited or event-based, so confirm the schedule before making a special trip.
Explore Witch’s Dungeon Classic Movie Museum in the Oddities Directory.
2. USS Nautilus
Groton, Connecticut
A submarine’s narrow passageways make naval history feel much less abstract. Moored beside the Submarine Force Museum, USS Nautilus lets visitors step inside the world’s first nuclear-powered submarine and see bunks, control spaces, torpedo areas, and a remarkable quantity of pipes and gauges.
Launched in 1954, Nautilus traveled beneath the geographic North Pole in 1958. Its preserved compartments give a close-up sense of the machine and the people who lived aboard it. Admission is free, but stairs and tight hatches limit accessibility inside. Check operating hours and security rules before visiting the Navy museum property, and expect a very different scale of personal space from the average museum gallery.
Explore USS Nautilus in the Oddities Directory.
3. Skull and Bones Tomb
New Haven, Connecticut
At 64 High Street, a heavy brownstone building gives almost nothing away. The Skull and Bones Tomb houses Yale’s secret society behind a fortress-like exterior with few windows. For a place whose appeal comes from being mysterious, the architecture is doing an excellent job.
The society dates to 1832, and its influential alumni and private rituals have accumulated nearly two centuries of rumor. Treat the dramatic stories as folklore rather than proof of hidden conspiracies. This remains an active private building with no public tours. View it from the public sidewalk, enjoy the unusual facade, and leave the guessing about its interior outside where it belongs.
Explore Skull and Bones Tomb in the Oddities Directory.
4. PEZ Visitor Center
Orange, Connecticut
A little candy dispenser can inspire a surprising amount of collecting. The PEZ Visitor Center fills more than 4,000 square feet with dispensers, packaging, advertisements, and factory artifacts, tracing the tiny sugar bricks and character heads that have occupied pockets and shelves for generations.
PEZ began in Austria in 1927 as peppermint candy; the familiar character heads arrived later. Today, early dispensers, rare releases, prototypes, and a PEZ-themed motorcycle make the collection much bigger than a childhood handful. A viewing window looks into the working production area, though visitors do not enter the factory on a standard visit. Check hours and production visibility before heading over.
Explore PEZ Visitor Center in the Oddities Directory.
5. Gillette Castle
East Haddam, Connecticut
Gillette Castle looks like a medieval fortress, but its owner brought a very theatrical mind to the design. William Gillette, the actor closely associated with Sherlock Holmes onstage, built this rough-stone home above the Connecticut River between 1914 and 1919. Inside, forty-seven doors have individually designed locking mechanisms.
Hand-carved woodwork, hidden mirrors, and a disappearing bar add to the house’s inventive personality. Gillette even ran a private narrow-gauge railroad around the estate; walking paths now follow parts of its route. The grounds are free, while interior tours are ticketed and scheduled. Reserve ahead if you want to see the details that make this much more than a handsome stone exterior.
Explore Gillette Castle in the Oddities Directory.
Plan your Connecticut oddities stops
New Haven and Orange make a useful pairing, while Groton, East Haddam, and Plainville give you reasons to explore other parts of the state. Check each Directory entry for visitor details before leaving. Keep the Tomb to an exterior stop, and arrange your itinerary around confirmed museum openings and castle tour times.