William Gillette insisted on using local Connecticut fieldstone for the castle's construction, even specifying the exact aesthetic appearance for each stone.
The mansion includes a series of secret doors and panels that Gillette used to surprise guests.
The interior locks are made of wood and were carved by Gillette himself to operate silently.
Gillette operated a miniature 1/8th scale railway on the property, complete with a train engine and miles of track, to entertain guests.
The building was originally named 'The Seventh Sister' after the hill it sits upon, which is the seventh in a series of peaks along the river.
There are no two doors in the house that are identical in design or size.
The home was constructed without formal architectural blueprints, with Gillette managing the design personally during the five-year build.
Gillette's original collection of antique household items and theater memorabilia remains on display.
The estate was acquired by the State of Connecticut in 1943 following Gillette's death to prevent it from being demolished.
Some of the mansion's light switches are disguised as decorative metal carvings or hidden within the woodwork.
Gillette Castle State Park is defined by the former residence of actor William Gillette, who played Sherlock Holmes on stage over 1,300 times. The mansion, completed in 1919, features a distinctive fieldstone exterior designed to resemble a medieval ruin perched atop the Seventh Sister hill. The interior showcases unconventional architectural details including 47 uniquely designed doors, hidden light switches, and intricate hand-carved white oak woodwork. The estate encompasses 184 acres of woodland, walking trails, and formal gardens overlooking the Connecticut River. The structure is built from local granite and reinforced with steel beams for structural stability. It serves as a rare example of eccentric early 20th-century residential architecture in Connecticut.
The south-facing stone terrace providing a panoramic view of the Connecticut River and the valley below.
Wear comfortable, sturdy shoes, as the mansion and surrounding trails involve uneven terrain and stone stairs.
Bring a picnic to enjoy at the designated areas near the river overlook.
Check the official park website before traveling, as the interior of the castle is subject to seasonal closures.
Do not attempt to walk down the steep, unmarked cliffs toward the river; stick to the formal park trail system.
The mansion interior is typically closed during the winter months and on certain weekdays during the shoulder season.
No photography inside the castle; stay on designated trails to protect local vegetation; do not touch the wood carvings or historical artifacts.
