A series of massive masonry barrel vaults characterise the old stables of the Grand Hornu.
The temporary wooden mould originally required to create this space forms the starting point of the scenography.

Several of these semi-circular wooden structures are arranged lying down throughout the space and introduce a new course.

The mould is again a temporary construction and acts as a fit for the exhibition.
“A mussel hides a mould and vice-versa. Magritte’s pipe is the mould of the plume of smoke.”
Marcel Broodthaers, 1966