A glass wall (1) has two parallel wall elements (3), at least one of which consists of a material made of glass or a similar material, which is transparent to light, and behind which LEDs, with which the transparent wall element (3) can be lit translucently, are arranged in rows as illuminating devices. To achieve illumination of the glass wall (1) over the largest possible areas, provisions are made for LED light sources (7) to be arranged in a small number of illuminating groups on plate-like carriers (17) in the area of the front-side end of a narrow, elongated light chamber (6). A plurality of such light chambers are arranged separated by transverse walls (4, 4', 5) in the vertical position next to each other or in the horizontal position one on top of another to form the glass wall (1). Each light chamber (6) has at least one translucent wall element (3) with an inner surface having a refractive and reflecting structure. The LED light sources (7) are equipped with focusing lenses (10) converging optically to divergence angles (.alpha.) of up to 20.degree. and are arranged such that their light, emitted in the longitudinal direction of the respective light chamber (6), is partly reflected multiply on the inner surfaces of the wall elements (3) and is partly visible from the outside through at least one transparent wall element (3) over the length of the wall element.