The Haydn Church, also known as "Bergkirche", is one of the most beautiful baroque churches in Burgenland.
Under the north tower is the dignified, atmospheric burial place of Joseph Haydn - the Haydn Mausoleum. This important tomb is the destination of countless music lovers from all over the world. Joseph Haydn (1732-1809) worked at the court of the Esterházy family for over 40 years. After his death he was first buried in Vienna, transferred to Eisenstadt in 1820 and buried in the mausoleum in 1954.
The famous Calvary at the Haydn Church was built by the Franciscan lay brother Felix Niering in the years from 1701 – 1707. Steps and dark hallways lead through an artificial mountain made of rocks and pass by small niches, grottos and tiny chapels portraying scenes of the Passion of Christ.
The pilgrim church "Visitation" was built between 1715 and 1803 according to plans drawn up by Prince Paul I. Esterházy. Unfortunately, the prince did not live to see the groundbreaking ceremony as he died from the plague in 1713.
The portion of the church that can be visited today represents merely the presbytery of the church originally planned. It was to be a place of worship of enormous proportions. The high altar picture "The Visitation" is a copy of a painting by Dorffmeister and dates back to 1797. The ceiling fresco "The Ascension of Christ" was painted in 1722 by two local fresco painters, Wolfgang and Christian Köpp. The famous organ Haydn used to play on is located on the gallery. Several compositions for mass were first performed here and conducted by Joseph Haydn himself.