It was the last summer residence of the Guelph Kings of Hannover and can be seen from as far off as Calenberger Land. The splendid neo-gothic palace was built by King George V in the mid-19th century as a gift to his wife Mary. Guided tours offer a fascinating glimpse of life behind the scenes. In summer, the Castle is used as a venue for live music and plays. The old coach house and stables provide a special ambience for the restaurant.