Kowloon looks like it would have been such a fun place to live.

In reality it was probably not fun at all, since it was so rife with crime and drugs and theft, and it was poorly constructed to begin with. But still, the concept of an entire city so densely packed that you can get from one end to the other without ever touching the ground, all through mazes of stairways and ladders and rooftops, is super cool.