The Forum, an Art Deco building in concrete, iron and glass, was built between 1921 and 1922.
The more attractive of its two façades, in the rue du Mouton blanc, is covered in cement sculpted into various floral motifs and its huge bay, shaped like a basket-handle arch, contains superb stained glass depicting a stylised auditorium.
Other pieces of stained glass shed light, partly artificially, on the peristyle and the staircases leading to the various floors.
The auditorium ceiling, which is 25 metres long and has no central support, is decorated with plaster mouldings painted with geometric motifs and gilded with brass foil.
The building was restored in the 1980s.
Building listed by RD (24-07-1979) and by Ministerial Decree of the Walloon Region (4-07-1989)
Listed as an exceptional heritage site of Wallonia