WOAH!
There was an exhibition held in Langham Place (one of Hong Kong's biggest shopping malls) when I was there. All the buildings you see are modeled after buildings from Mong Kok street, and they're all actually made of paper, acting a like those paper models from pop-up books.
The entire masterpiece was designed by Kit Lau, who has recently published a similar book. Creator of masterpiece, he is.
More pictures:
Cute! Hong Kong mini-bus in paper form!
It might not look like it, but the buildings are in 3D.
Looks real, eh?
Paper food from Tung Choi Street! YESH!
