Patriarchal Cathedral of Saints Constantine and Helena

From Wikipedia The structure was begun in 1655 and completed in 1659 under the orders of the Wallachian prince, Serban Basarb. The facade is in the Brâncovenesc style. All of the original frescoes and sculptures were destroyed, except for the icon of Constantine and Helen, who are the patron saints of the cathedral. The present-day frescoes were added in 1923 by Dimitrie Belizarie. In 1862, the Romanian prime minister, Barbu Catargiu, was assassinated as his open carriage passed in front of the cathedral.