An official Path Through History Site! Lyndhurst Mansion, one of the finest Gothic Revival homes in the US, sits on 67 beautifully landscaped acres overlooking the Hudson River. Visitors can join a guided tour of the 19-room mansion, which was designed in 1838. Walk through the Gilded Age collections of European paintings, clothing, decorative arts, stained-glass Tiffany windows, and more. Special behind-the-scenes tours include visits to the restored 1895 bowling alley, laundress building, and observation tower. Open April through October, Thursday through Monday and designated dates in November and December. Advanced ticket purchase is recommended.