Harkness Mansion is a historic estate located in Waterford, Connecticut. Built in the early 20th century, it was designed in the Beaux-Arts architectural style and features beautiful gardens and stunning views of Long Island Sound. The mansion was originally constructed for the wealthy Harkness family, who were known for their philanthropic efforts. Today, Harkness Mansion is part of the Harkness Memorial State Park and is open to the public for tours and events. The estate showcases its original furnishings and artwork, providing visitors with a glimpse into the luxurious lifestyle of the early 1900s.