Name: Castle Hotels Ireland
Description: Looking specifically to stay in Ireland, then this is the directory you need to check out. Several locations listed and they are all gorgeous.
Name: Castle Stuart
Description: It shouldn’t be a surprise that some ancient castles would have a spirit or two. Castle Stuart in Scotland is particularly well-known for being haunted.
Name: Castles and Palaces
Description: This site has a huge collection of potential castle hotels, as well as other mansions and palaces that can be rented. Not just the UK either, but she has locations all through Europe. Find castles in Spain, Germany, Italy or elsewhere!
Name: Celtic Castles
Description: Accommodations fit for a king, or at least a duke. These authentic castles in Scotland and Britain offer a unique hotel stay.
Name: Historic UK
Description: This index has a whole range of castle hotels through Britain, Scotland and Wales.
Name: Spanish Paradors
Description: Look outside of the UK, and find some very unique castle accommodations in Spain instead.