Thornewood Castle stands as one of the few authentic private castles in the United States, situated on the shores of American Lake between Seattle and Tacoma. Built in Tudor Gothic style, the 16500-square-foot estate incorporates authentic materials salvaged from a 400-year-old English castle, including 16th-century stained glass windows and gardens designed by the renowned Olmsted Brothers. Known as "the house that love built," this romantic lakefront estate operates as a luxury accommodation and event venue, offering overnight stays in themed suites, weddings and receptions, corporate retreats, and tours of its historic architecture and English gardens.