The mine Šuplja stena was dug even in prehistoric times. Today it is abandoned. This research center is a dynamic structure, a machine that pulls, pushes, sucked into the mine. Its aim is to explore and revive, to open the story of the hidden interior. Each element placed above the ground response to an element of the underworld. That what is underground is under pressure, irregular, and above ground is free and geometrical. The character of the structure was extracted from the underground, it was lifted to the surface and it is like a picture in a distorted mirror.
