This enormous neo-Norman castle sits between Snowdonia and the Menai Strait. Built by Thomas Hopper between 1820 and 1845 for the wealthy Pennant family, who made their fortune from Jamaican sugar and Welsh slate, the castle is crammed with fascinating things such as a one-ton slate bed made for Queen Victoria. Hopper also designed its interior with elaborate carvings, plasterwork and mock-Norman furniture. The castle contains an outstanding collection of paintings. The Victorian kitchen and other servants’ rooms, including scullery, larders and chef’s sitting room, have been restored to reveal the preparations for the banquet for the Prince of Wales’ visit in 1894. The stable block houses an industrial railway museum, a model railway museum and a superb dolls’ museum displaying a large collection of 19th- and 20th-century dolls. The 18.2ha (45 acres) of grounds include parkland, an extensive exotic tree and shrub collection and a Victorian walled garden.