Church of Our Saviour on the Spilled Blood, St Petersburg, Russia. As a ghost, I am looking for a castle to haunt. What about this one? I know it isn't technically a 'castle' but look at its magnificent size! I think it would still be splendid to haunt.
Awesome Windsor Castle, The original castle was built in the century after the Norman invasion by William the Conqueror. Since the time of King Henry I, it has been used by succeeding monarchs and is the longest-occupied palace in Europe possibly haunted