On 14 July, Marti AG Basel performed a core drilling on an erratic block weighing over 25 t and originating from the Gotthard massif as a part of the project designed by the artist Eric Hattan. The core was then extracted using a crane. The boulder will not be encased in concrete but put in the new entrance hall for everyone to see. It will function as foundation for the only pillar supporting the hall roof.
Marti AG Basel