The Church of the Savior on Spilled Blood is an architectural marvel in Saint Petersburg, Russia, known for its captivating Russian-style architecture. This historical church was built on the site where Emperor Alexander II was mortally wounded in an assassination attempt in March 1881. Construction began in 1883 under Alexander III, as a memorial to his father, and completed in 1907 during Nicholas II's reign. Its official name is the Church of the Resurrection of Christ, but it is commonly referred to as the Church on Spilled Blood due to its history. Notable for its multicolored onion domes and intricate mosaics, which cover the interior walls, the church boasts over 7,500 square meters of mosaics—a feat unparalleled in the world. Unlike many other churches in Russia, it was not designed for regular worship but as a memorial. The church was closed for services in the 1930s, suffered damage during World War II, and was used for various purposes, including as a morgue during the Siege of Leningrad, before being reopened as a museum after extensive restoration.