Miercurea-Ciuc (Hungarian: Csíkszereda; German:Szeklerburg) is the county seat of Harghita County, Romania. It lies in the Székely Land, an ethno-cultural region in eastern Transylvania. The town is situated in the Olt River valley.
According to the Romanian census of 2002, there were 42,029 people living in the city. Of this population, 81.75% are ethnic Hungarians, primarily Székely, while 17.3% are ethnic Romanians, 0.62% are ethnic Romas and 0.33% declare other nationalities.
Roman Catholicism is the majority religion of Miercurea-Ciuc, its adherents numbering 74.06% of the total population. Romanian Orthodox (14.99%), Hungarian Reformed (7.41%), and Unitarian (2.05%) adherents represent the most significant other religious groups.
Petőfi Street is the main pedestrian street in the city. It has a young feel thanks to the presence of many students, and houses many restaurants and cafés. Their Székely specialities conjure up images of a small city in Western Europe.
The most obvious point of interest in Miercurea-Ciuc is the Baroque church at Csíksomlyó (see section below.) In the city centre, the main point of interest is the Mikó Castle, built in a late Renaissance style. The original more decorative castle was raised in the 17th century on the orders of Ferenc Mikó Hídvégi, the personal advisor of Gabriel Bethlen, then prince of Transylvania. Much of the castle was destroyed in 1661 during the Tatar raids, but it was rebuilt at the beginning of the 18th century and was mainly used as a barracks; today it houses the Csík Székely Museum. Behind the castle is a small Skanzen (museum village), consisting of a few traditional Csíki houses and wooden gates. Across the road from the castle is the city hall built in 1886, originally the county hall of the old Hungarian Csík County. Beside the castle is the 1904 Courthouse. The latest significant addition to the architectural landscape is the controversial 2001 Millennium Church, designed by Hungarian architect Imre Makovecz and located next to the Baroque Church of the Holy Cross.
Miercurea-Ciuc is twinned with:
- Bălţi, Republic of Moldova
- Bečej, Serbia
- Berehove, Ukraine
- Budakeszi, Hungary
- Cegléd, Hungary
- Gyula, Hungary
- Gödöllő, Hungary
- Heves, Hungary
- Kaposvár, Hungary
- Makó, Hungary
- Tiszaújváros, Hungary
- Óbuda, Hungary
- Armenian Self-Government in Zugló, Hungary
- Želiezovce, Slovakia
- Riehen, Switzerland