Famous Sights in Jászberény Jászberény has numerous historic monuments. One of the most famous is the Nagyboldogaszony Church (Church of the Virgin Mary) which is situated in Lehel Vezer Square, the vibrant main square in Jászberény. The church was originally Gothic but the present building is pure baroque in style. The actual date when the church was built is unknown but it was already mentioned in 1332.