Kyustendil is located at the foot of the Osogovo mountain, on both banks of the Banska River and is a well-known centre of balneology and fruit growing. The town is 90 kilometres southwest of Sofia, 69 km northwest of Blagoevgrad and 22 km from the border with the Republic of Macedonia and Serbia. The fortress was built by the Romans. Thermae, basilicas, floor mosaics have been uncovered
