Castle Rock Own a piece of American history. This iconic stone castle is one of the most recognizable man-made landmarks of the Hudson Highlands. Set 620 feet above the Hudson River with panoramic views north and south and across the river to West Point, it's a breathtaking setting. Originally constructed in 1881 as a summer home for William H. Osborn, president of the Illinois Central Railroad, and not offered to the market for over 45 years, it's ready to be restored to its original glory. Built in the classic style of a picture-book castle, and constructed of rough-cut stone with red slate conical roofed towers and dormers, it's complemented with porches and verandas on each side of the building. The immediately recognized, irreplaceable fa ade and once-magnificent grounds are poised to create an estate of unparalleled proportions. With over 15 acres and adjacent to a 100-acre preserve of forever-protected woodlands with hiking trails, it offers year-round outdoor recreation less than an hour's drive to NYC.