You will have no trouble thinking what to write on your postcards if you stay in this Youth Hostel, housed in a moated Norman castle. Originally built as a hunting lodge for King John in 1205 on the site of an earlier stronghold, its towers were added in 1293 as part of the Ring of Stone around Wales. It's a unique experience, especially when you enter into the ancient spirit with medieval banquets most Saturday evenings (please pre book, medieval banquets are also available upon request at other times, such as most Wednesday in summer).