Mont Saint-Michel - Artist: piece by renown poster artist Fix-Masseau. Located off the northwestern coast of France, the Gothic style Benedictine Abbey dedicated to the archangel St Michael is a UNESCO World Heritage site, and a major tourist destination.
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.
Entrance Hall to the Natural History Museum, London, England. Romanesque Revival but with modern materials and structures such as terracotta and striking steel ribs to the roof. All decorated with natural imagery.