A small garden and a charming gallery with walls covered with frescoes precede the church of St-Constantine-and-St-Helena. Built in 1832 by the architecte Petko Boz, it features an elegant tower with ornamental apertures. The decoration of the three-naved interior, surmounted by a vaulted ceiling, is extremely elaborate: mural paintings (note in particular Noah's Ark to the left of the door), an iconostasis in polychrome carved wood, icons by Zahari Zograf (1836-38) and by Nikola Odrincanin (1848) and a pulpit in carved wood.