During the Middle Ages the castle was well known for the holy cross in its chapel and as a popular destination for pilgrims. a visit gave them indulgence for 1 year and 40 days as decreed by Pope Innocent VI.
The castle was destroyed in the Great Northern War by the armies of Peter the Great. Today, you can visit the castle tower, light a candle in the sacred place and enjoy night concerts surrounded by beautiful nature.
It's definitely worth a visit if you're ever in southern Estonia!