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.
The Armour-Stiner House, also known as the Carmer Octagon House, Irvington, NY -- a unique octagon-shaped and domed Victorian style house built in by financier Paul J. The octagon style has been referred to as the brain house.