Technocity

A young man, Jussi Seppänen, got a new job in 2008 at the City of Helsinki's City Map Service. he has been fascinated with maps all his life. In a few months he constructed the fascinating map of Helsinki with circuit boards and computer parts. His colleaques carried more and more old circuit boards from the dusty corners of the office. The map is on exhibition for now at the Kirjasto 10 Library in Helsinki.
All details are very much similar to the real world. You can see the golden Uspenski Cathedral and the white Helsinki Cathedral in the middle.