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A historical gem of New York, Castle Williams earned a spot on the National Register of Historic Places in 1972 and was also recorded by the Historic American Buildings Survey in 1938 for its important contributions to the National Historic Landmark District. Completed in 1811, Castle Williams was actually designed by Lieutenant Colonel Jonathan Willian of the US Army Corps of Engineers and was considered to be one of the most state-of-the-art defenses of its kind at the time it was constructed. Due to its position on the New York Harbor, it was a pivotal part of New York’s naval defense network until it was retired. Today, Castle Williams stands as an icon of the harbor and is open to guided tours during the summer.

Address: Governors Island, New York, New York 1004, Phone: 646-771-9728

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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