This little gem of a church, built in the 1630s, is an exquisite example of Russian baroque. Its onion domes and tiers of red and white spade gables rise from a square tower. Its interior is covered with 1650s gospel frescoes by Simon Ushakov and others. A carved doorway leads into St Nikita the Martyr’s Chapel, above the vault of the Nikitnikov merchant family, who were among the patrons who financed the construction of the church.