St. Petersburg, Russia. This is the Church of the Saviour on the Spilt Blood - the only onion-topped church in Saint Petersburg. (More formally known as the Church of the Resurrection of Christ.) It was used to store potatoes during the Soviet period. Didn't anyone tell them that it would be more appropriate to store onions there? The Soviets also had a plan to blow it up, such was the irritation it caused to their ban on religion, but due to its canal-side location engineers advised against it. The inside is covered in mosaics - about 7,000 square metres, give or take. The main dome has an image of Jesus with three-foot wide eyes. A shell was dropped through the roof during the war and went straight through Jesus's shoulder. Miraculously, it didn't explode, and Mr. Christ was patched up perfectly. Looks good big and on black.