One kilometer labyrinth of steel corridors, with walls as high as 5 meters high, is the awesomely designed contemporary labyrinth-installation realized by the collaboration of two Belgian architects and artists Gijs & Vaerenbergh (Pieterjan Gijs & Arnout Van Vaerenbergh). The structure has been constructed at the site of an old coal mine. The whole structure seems to have sort of Boolean deductions comprising of large, geometric shapes, like sphere, cylinder and a cone, that are are scooped out from the structure. These cut out hollows create various voids and overlapping sequences of spatial experience. Its quite playful yet extremely over-powering structure.