On October 29th, 2018, Archbishop Dr. Heiner Koch (right, with spade), Bishop Dr. Markus Dröge, Evangelical Church Berlin-Brandenburg-Silesian Upper Lusatia, EKBO (left), and Archimandrite Emmanuel Sfiatkos, Greek Orthodox Metropolitan of Germany, head of the ÖRBB (center), planted a small leaved linden tree on behalf of the Ecumenical Council Berlin-Brandenburg (ÖRBB), which currently has 32 members.