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 São Paulo See Metropolitan Cathedral --"See" and "cathedra" mean "seat" and therefore the ecclesiastical authority of a bishop or archbishop is the cathedral of the Roman Catholic Archdiocese of São Paulo, Brazil.