Artists-Architect Johannes Peter Holzinger , in co-operation with artists Eberhard Fiebig, Ottmar Horl/Formalhaut, Leonardo Mosso, Norbert Muller-Everling, Ansgar Nierhoff and Andreas Sobeck, working on the government buildings on the Hardthohe in Bonn, has succeeded in creating an avante-garde landmark that shows in the interplay in the arts that can work well together.