The Church of the Savior on Spilled Blood is one of the most iconic landmarks in St. Petersburg. This magnificent cathedral is known for its colorful onion domes and intricate mosaics. It was built on the spot where Emperor Alexander II was assassinated in 1881. The interior of the church is equally impressive, with its stunning mosaics depicting biblical scenes. A visit to the Church of the Savior on Spilled Blood is a must for anyone interested in Russian history and architecture.