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The historic Boldt Castle is the crown jewel of Alexandria Bay. Situated on Heart Island in the center of the St. Lawrence River's Thousand Islands region (Video), the magnificent castle was built in 1900 by millionaire George Boldt as a tribute to his love for his wife; however, she sadly died a few months before its completion.

The property remained vacant for more than 70 years before being acquired by the Thousand Islands Bridge Authority, who restored it to its former glory and opened it to the public as a significant landmark and tourist attraction. The castle is open seasonally between mid-May and mid-October, and visitors can stroll around the glorious gardens and grounds of Heart Island and explore the many rooms of the edifice on self-guided or docent-led tours.

Address: 1 Heart Island, Alexandria Bay, NY 13607, Phone: 315-482-9724

Rating: ⭐⭐⭐⭐⭐

Head to the Thousand Islands to visit the Boldt Castle Take a guided tour of Singer Castle on Dark Island Stop by the visitor center at Castle Gould Head to Highlands Castle in the Adirondack Mountains Admire Olana State Historic Site Spend a night at Mohonk Mountain House Head to Little Falls and visit Beardslee Castle Climb up the observation deck at Belvedere Castle Plan a romantic getaway to Belhurst Castle Explore Lyndhurst Mansion on a day trip from New York Take a docent-led guided tour of Oheka Castle Admire the design of Castle Clinton National Monument Stay at Wing's Castle, a charming bed and breakfast Take a guided tour of the Victorian-Gothic style Skene Manor Visit the Frederick Ferris Thompson Memorial Library Travel back in time at Old Fort Niagara Check out Castle Williams on the New York Harbor Tour the Bayside Historical Society Castle Home

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