The Church Of St. Weeks (Light Week) – now defunct Orthodox Church converted into a Museum. Located in batac and the name of his Church was in honor of Kiriaki Nicomedia, early Christian Saint Martyr, tortured ruler Nicomedia Maximian Galerius.

The Church building was completed in 1813, and it lasted for 75 days and as the masters were made by the people of Batak. The building itself is a cross-domed building made entirely of stone. The doors are carved from oak, and the temple itself is enclosed by high stone walls.

In different periods of the Church's priests were Dimitar Paunov, Iliya Yankov, Peter Popiliev, Nacho Paunov, Kirill (the spiritual father of V. Levski) and also hieromonk Nicephorus. That fact is important that the Church service was conducted in the temple is always in the language of Church Slavonic and never in Greek. The preaching of the priests spoke in the native Bulgarian language.

During the April uprising last stronghold batalski rebels were the Church of Holy Week. Since 1878, since Bulgaria's liberation from the power of the Ottoman Empire, the Church is no longer used for worship. In it were placed the remains of the dead in Batchkovski the massacre of 1876, when the Janissaries killed nearly 5,000 civilians.

Since 1955, the Church is a state Museum, and the 1977 national monument-historic proportions.