The Biltmore Estate, located in Asheville, North Carolina, is the largest privately-owned house in the United States. Built by George Washington Vanderbilt II in the 19th century, it spans 8,000 acres and features a 250-room mansion inspired by European castles. The estate is renowned for its stunning architecture, beautifully landscaped gardens designed by Frederick Law Olmsted, and expansive grounds that include vineyards, hiking trails, and a farm. Open to the public, the Biltmore Estate offers a glimpse into the opulence and grandeur of the Gilded Age, making it a popular destination for tourists and history enthusiasts.