Cluj Napoca

Cluj-Napoca, known simply as Cluj until 1974 and colloquially referred to as Cluj (in Hungarian Kolozsvár, in German Klausenburg, in Yiddish קלויזנבורג Cloizânburg), is the municipal seat of Cluj County, Transylvania, Romania. With a population of 324,576 at the 2011 census, it is the second-largest city in the country. With a history spanning over two millennia, the city is often nicknamed the Heart of Transylvania or the Treasure City.

Cluj is located in the northern part of the Transylvanian Depression, between the Apuseni Mountains and the Transylvanian Plain, on the valley of the Small Someș River at the confluence with the Nadăș River and five other small streams. Due to the local geography, the city developed mainly along the east-west axis, along the southern boundary of the Someșan Plateau, flanked to the south by the Feleac Hill, and to the north by the Lomb Hill. The administrative boundaries of the municipality cover an area of 179.5 km², and the built-up area of the municipality was 36 km² in 2020.