Professor van Giffen and the Secret of the Wierden

with the launch of the Groninger Forum

16 Dec 2005

9 Apr 2006

opening: Friday 16th of December, 16:00.
The Wierden are artificial dwelling mounds from prehistoric times raised up to keep the water at bay.

Simultaneously the book Professor van Giffen en het Geheim van de Wierden will be published.