It is the rural church with the richest medieval stone sculpture decoration in all the Baltic states.

There is evidence that the church was from the beginning designed not only as a place of worship, but also to be able to function as a refuge in times of danger or war; there are rooms above the vestry and the vaulted ceiling, equipped with fireplaces and not readily accessible, which may have been designed to be able to house the congregation safely.

It has a single nave, spanned by high, whitewashed vaults forming two bays, a simple choir and a vestry.

The motives ranges from purely decorative foliage, to a Calvary group adjacent to the south portal, a notable sculpture group depicting St. Catherine, patron saint of scholars, holding a book and an equally prominent carved sculpture of St. Nicholas, patron saint of fishermen, accompanied by a monk holding a ship.

The Calvary shows Mary and John mourning and the two crucified robbers: one of them listened to Jesus and repented of his sins, the other only laughed at Christ's words.