Today we visited the above-mentioned place, which is NOT an official Lego museum, but I'm sure that's because of legalities. It is housed in a former school building, and contains three floors of exhibits, including a world-record making image spanning an entire gym floor.
Kwamai, Felicity and Erol all had a good time. I did too, but I manned the camera in order to not overload too much on tons of things to look at!
I'll post just a couple of pics to keep the computer from choking on me.
This last pic is a ship Kwamai built in the playroom and left as his own contribution to the exhibits. You can just see in his eyes how proud he was of his work.