Botschaft des Königreichs der Niederlande

It's getting close to the end of my trip.  I'm flying this afternoon to London, where I will stay for a few days.  My last couple days in Berlin were more about architecture than art.  I went to see Rem Koolhaas's 2003 Botschaft des Königreichs der Niederlande (Netherlands Embassy).  The exterior of the building is full of interesting elements.  It would have been great if I could also see the interior space.