Castles of "United States" BOLDT CASTLE vs BOSTON UNIVERSITY CASTLE

Boldt Castle is a major landmark and tourist attraction in the Thousand Islands region of the U.S. state of New York. Open to guests seasonally between mid May and mid October, it is located on Heart Island in the Saint Lawrence River. Heart Island is part of the Town of Alexandria, in Jefferson County. Originally a private mansion built by American millionaire George Boldt, it is now maintained by the Thousand Islands Bridge Authority as a tourist attraction. George Boldt, general manager of the Waldorf-Astoria Hotel in New York City and manager of the Bellevue-Stratford Hotel in Philadelphia, and his family enjoyed an earlier frame cottage on Hart Island (the island's original name) for several summers, which they greatly expanded. In 1900, George Boldt launched an ambitious construction campaign to build a huge masonry structure, one of the largest private homes in the United States. He engaged the architectural firm G. W. & W. D. Hewitt and hundreds of workers for a six-story "castle" as a present to his wife. In addition, four other masonry structures on the island are architecturally notable. Equally distinctive is a huge yacht house on neighboring Wellesley Island, where the Boldts had another summer home and a vast estate, incorporating farms, canals, a golf course, tennis courts, stables, and a polo field.

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The Boston University Castle (or BU Castle or simply "The Castle") is a Tudor Revival-style mansion owned by Boston University on Bay State Road. The school typically uses it for receptions or concerts, but also rents out The Castle to cater events and special occasions. The Castle was originally built as a residence for William Lindsey (1858–1922), a prominent Boston businessman who made his fortune with a patented cartridge belt the British Army used during the Boer War. Plans were drawn up in 1904 and construction was completed in 1915 at a cost of more than $500,000. Shortly after the building's completion, Lindsey's eldest daughter was married in the mansion, though she and her groom would later be killed while on their honeymoon, aboard the ill-fated Lusitania after the ship was torpedoed by a German submarine just off the coast of County Cork. The grief-stricken Lindsey later constructed the magnificent Leslie Lindsey Memorial Chapel in Emmanuel Church on Newbury Street in his daughter's memory. In 1926, Oakes Ames purchased the Castle from Lindsey's widow. He, University Trustee Dr. William E. Chenery and Chenery's wife donated the mansion to Boston University in 1939. From then until 1967, the Castle was used as the home of Boston University's presidents. In 2007, the Castle was a filming location for the Kevin Spacey movie 21, and in 2016, for Ghostbusters.

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