Nesebâr was once home to about 80 churches and chapels, but most are now in ruins. Characteristic of the Nesebâr style of church design are the horizontal strips of white stone and red brick, which are offset by striped blind arches resting on the vertical pilasters, the façades decorated with green ceramic discs.
Probably the most beautiful church in old Nesebâr was the St John Aliturgetos Church , accessible down some steps from the end of ul Ribarska. Built in about the mid-14th century and dedicated to St John the Unbeliever, the church was mostly destroyed by an earthquake in 1913. Concerts are sometimes held here in summer.