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Boldt Castle

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description Boldt Castle Overview

Boldt Castle is a historic mansion located on Heart Island in the Thousand Islands region of the Saint Lawrence River, in New York State near the Canadian border. It was commissioned in 1900 by George C. Boldt, a hotelier who managed the Waldorf-Astoria Hotel in New York City, as a gift for his wife Louise. Following her death in 1904, construction was halted and the castle was abandoned unfinished.

The site was later acquired and partially restored by the Thousand Islands Bridge Authority.

help Boldt Castle FAQ

Where is Boldt Castle?

Boldt Castle stands on Heart Island in the Thousand Islands region of the Saint Lawrence River. The island is in New York State near the Canadian border.

Who commissioned Boldt Castle?

George C. Boldt commissioned the mansion in 1900. He was the hotelier who managed New York City’s Waldorf-Astoria Hotel.

Why was Boldt Castle built?

Boldt intended the castle as a grand private home and a romantic gift for his wife, Louise. Construction stopped after her death, leaving the estate unfinished for many years.

How do visitors reach Boldt Castle?

Because it is on Heart Island, visitors normally arrive by boat rather than by road. The cross-border Thousand Islands setting makes the approach part of the attraction.

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