time. Pernik has been an energy centre of Bulgaria for a few decades. Population According to the 2021 census, Pernik has population of 70,285 people. Ethnic, linguistic and religious composition According to the 2011 census data, the individuals who declared their ethnic identity were distributed as follows: Bulgarians: 73,063 (97.1%) Gypsies: 1,709 (2.3%) Turks: 78 (0.1%) Others: 183 (0.2%) Indefinable: 218 (0.3%) Undeclared: 4,940 (6.2%) Total: 80,191 There is not very large concentration of Gypsies within the city limits as the Gypsies are 1,709 in the city and 1,781 in the municipality, while the Bulgarians are 73,063 in the city and 88,831 in the municipality. The Eastern Orthodox Christian is the predominant religion. Climate Pernik is in moderate-continental climate zone. Climatic conditions are influenced by the relatively high altitude – 750 m, but also by the fact that Pernik is in between mountains, which creates a specific micro-climate. Spring comes relatively late – in late March and early April. The average spring temperature is . Summer seasonal average temperature is about . The hottest month is July – an average monthly temperature . The absolute maximum temperature is . Autumn is warmer than spring, with seasonal average temperature of . http://www.stringmeteo.com Landmarks Palace of Culture – Pernik – urban theater halls, orchestras, library, ensembles for folk songs and dances and more. Regional History Museum – Pernik Underground Mining Museum – Pernik Krakra's fortress – stronghold Duhlata cave – the longest in Bulgaria. Duhlata – with input from the southern slopes of Vitosha Mountain is the longest cave in Bulgaria (17,600 m.) and deep 53 meters. A complex multi labyrinth system located on 6 floors. Necropolis archaeological Thracian tribe Agrianes from 8th to 4th centuries BC – about 20 km south of Pernik to Struma motorway near the village of Dren. Necropolis was discovered in early 2012 during the excavation of the highway. Unique necropolis discovered in archaeological finds of gold Thracian treasure from breastplates, earrings, hairpins, jewelry and articles of silver and amber, which are stored in the Historical Museum of Pernik. Thracian sanctuary is included in the ranking "The Wonders of Bulgaria" 2013. Mountain Golo Bardo, immediately above city Pernik. Golo Bardo separating Pernik and Radomir valleys, in which the nature reserve "Ostritsa". Holy water area – karst spring "Living Water" is near Vitosha village Bosnek. From his fountain of happiness, according to tradition of the 17th century, drank