Designed by József Hild, built in 1835-1870, the biggest Calvinist church in Central Europe. The dome was destroyed in a fire in 1936 and rebuilt in a taller form. The church building is a symbol of the town. The twin-towered façade has a projecting porch with a tympanum supported by four Ionic columns. The frieze below the tympanum bears the inscription: "Come unto me all of you".