1 / 4   The digital sculpture “Artefact” has created a surreal setting in the central square of the abandoned city of Pripyat near the Chernobyl nuclear power plant in Ukraine. /VCG Photo

2 / 4   The presentation addressed the problems of fake news, post truth and manipulation in the media. /VCG Photo

3 / 4   The lights were projected onto derelict buildings, attracting a throng of visitors, November 22. / VCG Photo

4 / 4   Pripyat, founded in 1970, is now a ghost town in northern Ukraine. The city was evacuated two days after the Chernobyl incident. / VCG Photo