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Interested in delving more deeply into the collections? Click on the images below to explore our online catalogs!

The catalogs provide information about thousands of artifacts, books, documents, and images in the collections of the Mercer Museum, Research Library, and Fonthill Castle. Only a small percentage of our collections are currently available online. However, we add hundreds of new items each year.

 

 

Admission Fees for Mercer Museum Admission Fees for Fonthill Castle

ROLLO'S FACTS

There are 44 rooms in Fonthill including 10 bathrooms, 5 bedrooms and 18 fireplaces. Completed in 1910 Fonthill boasted modern conveniences- 2 dumbwaiters, an Otis elevator, an intercom buzzer system and phones to communicate within the house.
ROLLO'S FACTS
WHO'S ROLLO?

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• November 9–13, 2026: Fonthill Castle will be closed due to setup for Holidays at Fonthill Castle. For more information and to buy tickets, click here.

• Tuesday, November 17: Fonthill Castle will close early for a private event. The last tour will begin at 3 PM.

• Saturday, November 21: Mercer Museum will close early at 2 PM for a private event.

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