The Mussenden Temple and Downhill Demesne has origins dating back to the eighteenth century AD, and is located on an area of up to 160 hectares, and many people visit it in order to learn about the place built by the Bishop of Derry for his mistress, which is characterized by its gates (Lion’s Gate and Bishop’s Gate), columns, gardens and monuments. Filming some scenes from the series of Game of Thrones.