When to go
All months of the year are suitable to photograph the Haus Kulturen der Welt.
For similar lighting conditions, visit during sunset to capture the soft light emanating from the building as the sun goes down.
Field tips
If you choose to have your model stand on the railing, please tell them to proceed with caution and watch their step.
Although I shot this image with a mobile phone, I recommend using a wide-angle lens to capture the building and the stairs. A tripod could also help with your shot!
Stand above the model so you can emphasize the stairs coming up from below the ground level.
Walk around the building and photograph the interesting architecture from different angles.