Built in the 11th century, the Church of St. Mary has undergone a variety of renovations and alterations over the years. 

The current church boasts a Renaissance façade and a lovely bell tower, known as Koloman's Tower, a splendid Romanesque structure dating from the 12th century. 

Next to the church stands the old monastery, which now houses the Museum of Church Art, with its fascinating collection of gold pieces, paintings, and sculptures.