Reformed great Church, closing the street, PIAC is a significant monument. architecture of Debrecen. The first was built in the Gothic style in the period between 1297 and 1311 years one-nave St. Andrew's Church, the largest at that time, which had dimensions 16 x 43 meters. In 1564 the fire the temple was destroyed, and only in 1626, with the support of the Prince of Transylvania.
Of Sigismund Rakoczy project Bethlen Gabor was erected a new Church, which suffered the fate of its predecessor: in 1802 kramorovoy a third of the city the fire did not spare the Church. Restoration work on the Church began in 1802, it is designed by Mihai Pitches, with the street visible amazing facade and the tympanum between the two bells. After the restoration of the Big Church, the first service in it was held on 24 November 1819, the Church houses the seat of Kossuth, he was the Supreme representative of Hungary.
The place where he built a Church in the middle ages it was intended for the construction of the temple, its current form is designed by the architect Joseph Taller. The Church has a huge building with a length of 55 meters and a width of the nave of 15 meters, which is located between two buildings, one is Western was built in 1818 and the second in East in 1821.
Regardless of what the work was finished in 1823, in 1819 was made in the Church erected its first service. In 1838 it was an organ made by the Viennese master Jakob Deichmann, which is the second largest mechanical organ in Hungary.
All the historical events of the Church brought no small fame.