Petrikirche is one of those temples, which, because of its architectural features, may act as a defensive structure. Its tower was used for cannon fire and the thick walls could long resist the onslaught of the enemy.
The church, built no later than the XII century, was rebuilt in the late Gothic style after the Hussite wars. In the XIX century its interiors were redesigned in the Gothic Revival style. Interior elements of an earlier period have been preserved: they include the Baroque altarpiece and the triptych on the cross of the mid XVII century, stained glass, baptismal font and alabaster bas-reliefs.