The former Premonstratensian abbey church of St John the Baptist sits at the centre of the village and is one of the oldest buildings in the area, dedicated in 1176. The plain twin-towered façade hides a startling interior — the Romanesque columns and capitals of the original nave are still there, but the walls and ceiling were covered with exuberant baroque and rococo decoration in the eighteenth century, so that you walk in expecting medieval austerity and find pink stucco and a frescoed vault instead.
The cloister is the other thing to see — partly Romanesque, partly Gothic, with worn capitals and a quiet square garth. The abbey was secularised in 1803 and most of the conventual buildings were demolished, but the church and a fragment of the cloister survive. Free to enter; the church is open daily during the day.