The second largest Protestant church in the capital.The neo-classical style church, built between 1816 and 1830, based on Hilda Vince's plans. Originally designed with two towers. The two separate base of the never-built two towers is made, and the tower in the middle standing on edges of two base. The organ is a work of the Viennese Deutschmann company, in 1831. The foyer is decorated with columned tympanum. The side choirs was built between 1854 and 1855, according to plans by József Hild. On the south side located the Kálvin's room. The glass paintings in the Kálvin Hall, made by Miksa Roth, Christian symbols and famous Protestant ecclesiastical history persons, John Calvin, Bocskai István Bethlen Gábor, are depicted. In the middle of the stave vault rises an elliptical dome. The interior white surfaces decorated with golded stucco. One of the main sight is Zichy Mano's wife's tomb.