The Series Historic Buildings in Transylvania, launched in 1993, presents the most precious examples of Transylvanian built heritage connected to the Hungarian culture, with the purpose of drawing the general public's attention on values, heritage and our responsibilities towards these. The publications of this series are recommended especially to those who at present own or use such values, but also to those who are interested in history, architecture and the Transylvanian art.

Number 30 of the Series Historic Buildings in Transylvania presents the Piarist Church located in the central area of Cluj, which was built originally as a Jesuit Church, in 1718-1824. The Roman Catholic church was built in the town, whose inhabitants were mostly Calvinists, next to the already existing monastery and school, thus creating the settlement's first Baroque architectural ensemble. The church, whose construction is attributed to the German architect Konrad Hammer, follows the layout type of the Il Gesù in Rome. After abolishing the Jesuit Order in 1773, the school, the monastery and the church passed into the possession of the Piarists. Due to the uniformity and harmony of the church interior, the building is considered to be one of the most beautiful Baroque historic buildings in Transylvania.