Church of Our Lady, Bellingen

St. Peter's Church (Sint Pieterskerk) in Leerbeek is an 18th-century parish church in the Flemish Brabant. It was designed by architect Jan Bernard Thibaut. The church preserves a pipe organ from 1648 built by Nicolaas II Le Royer, organ builder at the Court in Brussels. The church is surrounded by a cemetery enclosed by a brick wall.

The abbey of Forest, founded in 1106, lived from its glory days until the 15th century when the abbey was emptied of its inhabitants as a result of wars and epidemics. It was only in the 18th century that the abbey rose again and was rebuilt in its present form. However, this resurrection was short-lived because the French Revolution suppressed the religious community of the abbey and sold the building.

The church of Saint-Denis is a religious building whose oldest foundations date back to the 11th century, around the time of the founding of the village of Forest. The present building, which includes the sanctuary dedicated to Saint Alène, dates from the 13th century and is in Gothic style. The bell tower was raised by two floors in the 18th century. In 1925-1926, an important restoration of the ensemble was carried out by Chrétien Veraart, restoring to the building a luminosity that it had lost.