Sol Lewitt made a wall drawing at Vez in 1995, using all four walls of the Donjon's main ground-floor room. This is the largest privately owned work of its type by this artist in France.

Sol Lewitt (1928-2008) is an internationally reputed American artist, and one of the generation which, in the 1960s, shook up the art scene with the new aesthetic stance now known as Minimalism. This term covers artistic currents whose aim is to reduce works of painting and sculpture to the bare essentials of geometrical abstraction: forms are simplified in the extreme and taken back to their elemental structure.

Under Lewitt's direction, his assistant Anthony Sansotta and his team created drawings on the four walls of the Donjon's main ground-floor room: pyramids, diamonds, triangles and parallelepipeds. Juxtaposition of the nine layers of primary colours stipulated by the artist – blue, red and yellow, plus grey – generates secondary colours that stabilise the shapes.

The resultant isometric figures verge on illusionism, for the laws of perspective are not observed: the eye slides over afocal surfaces and polyhedra are flattened into the plane of the walls.