
Series Preview
Preview: Season 2026 | 30sVideo has Closed Captions
Lucy Worsley unlocks the secrets of four of the world’s most spectacular palaces.
Armed with the keys to the world’s greatest palaces, Lucy Worsley explores hidden rooms inside Marie Antoinette’s Versailles, discovers how Blenheim Palace shaped Winston Churchill, and finds a dark secret at the heart of the Doge’s Palace in Venice.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback

Series Preview
Preview: Season 2026 | 30sVideo has Closed Captions
Armed with the keys to the world’s greatest palaces, Lucy Worsley explores hidden rooms inside Marie Antoinette’s Versailles, discovers how Blenheim Palace shaped Winston Churchill, and finds a dark secret at the heart of the Doge’s Palace in Venice.
Problems playing video? | Closed Captioning Feedback
Where to Watch Lucy Worsley’s Keys to the Castle
Lucy Worsley’s Keys to the Castle is available to stream on pbs.org and the PBS app.
(suspenseful music) - I've got the keys to some of Europe's grandest buildings.
I think I'm in.
Blenheim Palace, Neuschwanstein, Versailles, and Doge's Palace.
This is just my dream.
The visitors here are normally kept behind the ropes.
I'm going to take you into secret rooms and hidden spaces until I've uncovered every last secret.
(suspenseful music)
Video has Closed Captions
Preview: S2026 | 30s | Lucy Worsley unlocks the secrets of four of the world’s most spectacular palaces. (30s)
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