Prominent heads - as they appear in the streets of Bern.
The authorities in the city of Bern have declared war on graffiti. The "Casa Blanca" campaign has been running since 2005. But still a number of faces - some well-known, others less so - keep popping up here and there, only to disappear again, as in real life. (Pictures: Christoph Balsiger, swissinfo)