The history of the church dates back to the beginning of the 12th century. It houses numerous works of art, including paintings by Jean van Orley, Guillaume Herreyns and a painting attributed to Rubens. It is also worth paying attention to the historic confessionals, the Louis XVI style pulpit and the choir stalls from the end of the 18th century.
The church also has a historic gilded reliquary that houses the relics of St. Nicholas, belonging to the martyrs of Gorkum. It was a group of nineteen Catholic monks and priests who were killed on July 9, 1572 by Calvinists for their faith.
The oldest preserved element of the church is the 12th-century entrance porch, which was only revealed by the reconstruction works carried out in the 1950s. It is a remnant of the first Romanesque church, destroyed by a storm in 1367. The temple was damaged several times, incl. during the religious wars in the 16th century and during the bombing of Brussels by the French army in 1695.