"More than 270 sculptures, masks and everyday objects from public and private collections across the world on display in Bonn show why the Dogon culture counts as one of the most significant in Africa."
See
http://www.dw-world.de/dw/article/0,,15460026,00.htmlThe exhibition runs until January 22, 2012 in the Bundeskunsthalle in Bonn. The venue is pretty close to the Netherlands and Belgium. I've been there myself a couple of times, and they are well-equipped to run major exhibitions.