east are Sapareva Banya with a total discharge of 33 L/sec and temperature of 33–101.4 °C, Belchinski Bani with a total discharge of 24 L/sec and temperature of 40–41.5 °C, Dolna Banya with a total discharge of 22 L/sec and temperature of 56.3 °C and the village of Kostenets with a total discharge of 12 L/sec and temperature of 46–73 °C. Rila has well developed cultural tourism and contains five of the 100 Tourist Sites of Bulgaria — the Church of Theodore Tyro and Theodore Stratelates in the village of Dobarsko, the Rila Monastery and the Stob Earth Pyramids, the Seven Rila Lakes, the museum of history and the convent in the town of Samokov, and the summit of Musala. Rila Monastery is the most important architectural monument in the mountain range. It is situated at an elevation of 1,147 m and was declared a UNESCO's world heritage site in 1983. The Monastery is considered to be a cultural and spiritual centre of Bulgaria. With its architecture and frescos Rila Monastery represents a masterpiece of the creative genius of the Bulgarian people and has exerted considerable influence on architecture and aesthetics within the Balkan area. Established in the First Bulgarian Empire by the medieval Bulgarian hermit and saint John of Rila during the reign of emperor Peter I of Bulgaria (r. 927–969), the monastery developed into one of the main cradles of Bulgarian culture, literature and spirituality. In the 18th century it became one of the main hubs of the Bulgarian National Revival. The complex covers an area of 8,800 m2 and consists of a five-domed church, a defensive tower and monastic apartments encircling an inner yard. The exterior of the complex resembles a fortress with its high stone walls and little windows. The oldest surviving structure is the 23 m high Hrelyo's Tower, constructed in 1334–1335. The Church of Theodore Tyro and Theodore Stratelates in Dobarsko at an elevation of about 1,000 m is a small three-naved stone basilica half dug into the ground, constructed in 1614 and painted in 1672. The church is noted for its abundance of original frescoes and icons. The Church of Saint Nicholas in Sapareva Banya is small medieval edifice, constructed anytime from the 11th to the 14th century. It was built using red bricks and white mortar and is of a simple cross-in-square design, with a single nave and apse. The town of