These three buildings. Three architectural structures, each serving as a workplace for architects, officials, and businessmen, collaborate to shape the future. The collective efforts of the occupants of these three buildings give rise to the structures and residences that will define our future environment. These three exceptional buildings showcase various sustainable techniques and have welcomed visitors during the Open House Tallinn event to unveil the future. These three buildings actively participate in shaping the future. I visited these three buildings. These three buildings.