An unexpected find in New York's Thousand Islands, this European-style castle is a stone's throw from Alexandria Bay. It was built from 1900 for affluent hotelier George C. Boldt and remains an impressive confection of conical towers, turrets and stonework today. The stately building was actually intended for Boldt's beloved wife, though she sadly died before its completion. Now visitors come for self-guided tours of the impressive 120-room property and its surrounds.

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