Castle Ward is an 18th-century National Trust property located in County Down, Northern Ireland. It is a popular destination for tourists, as well as fans of the hit HBO series "Game of Thrones" which was partially filmed on the property.

The house itself is a combination of Georgian and Gothic architecture and was built in the 1760s by the 1st Viscount Bangor, Bernard Ward, and his wife Lady Ann Bligh. The couple wanted to incorporate both their tastes into the design, so the east side of the house features Gothic-style towers and turrets, while the west side is more classically Georgian.

Castle Ward is situated on the shores of Strangford Lough, a large sea inlet that provides stunning views of the surrounding countryside. The estate includes several walking trails, gardens, and a farmyard with rare breeds of animals.

Visitors can take guided tours of the house, which includes a glimpse of the room where the famous "Dinner Party" scene in "Game of Thrones" was filmed. There are also opportunities to dress up in period costume and participate in various activities, such as archery and kayaking.

Overall, Castle Ward is a fascinating glimpse into the history and culture of Northern Ireland, as well as a beautiful natural setting for outdoor activities.