Dear fellow DE's and regular forum readers,
The Gruuthuse museum currently still holds, until 23 June 2013, a temporary exhibition. Afterwards all items from the expo have to be removed from the museum and the permanent collection needs to be reinstalled. This process is EXPECTED to be finished just before the Christmas holiday in December 2013.
Fact is that for the upcoming months the Gruuthusemuseum will not be open for visitors, and you can only admire the building from the outside.