The 3.500 km of banal geometry cutting across dense geopolitical boundaries started as an economic decision in 2003. The decision is just about to be fully materialized. It will soon become energy security to many Europeans. Natural gas from exotic Azerbaijan will heat the cold European homes. It is a 1st class urban planning phenomenon that seems to be ignored. In terms of environmental protection - much less so. Its investigation, section by section, opens unforeseeable situations: amusing, frustrating, tragic... It cuts through / ties together the decidedly different fates of places it meets. In the natural environment, it represents frustration to the landscape. To the cultivated land is an insurmountable barrier between formerly neighboring fields. Underground, underwater, over rivers, through urban matrices... To what extent is an invisible abstraction, to what a massive barrier? Does it take into consideration the visible context, what are the emotional impacts on places?