The sculpture Pool Lines by Mexican artist Sofía Táboas is clad with shimmering green mosaic tiles. Are these the archaeological remains of a swimming pool from times when the Emscher was still a meandering river? Have we been projected into a mythical Bermuda Triangle, bordered by a strictly geometric greenstone mosaic? 

Or are these preparations for some future landing site? Facing each other, both triangles are open and encompass the section of a meadow that lies between an industrial estate and allotment gardens in the Dortmund district of Schüren. In the background flows the Emscher, which along this stretch has already been completely renaturated. While blending into its surroundings, the sculpture’s configuration remains an alien body as attractive as it is mysterious, a play between landscape and architecture. The interior space described by its walls is of the same nature as the exterior space around it. It both reflects and transforms the site of the installation: the scarcely cultivated green strip has become a garden whose velvet green walls invite us to linger a while.