What was in the middle of the Kowloon Walled City ?

All photos I have seen of Kowloon Walled City, there are huge high rises and in the center there is an open space that looks to have lower density buildings. I was curious why that was and what was there? Here are two links that show photos demonstrating what I mean. 

https://en.wikipedia.org/wiki/File:Kowloon_Walled_...

https://en.wikipedia.org/wiki/File:KWC_-_1989_Aeri...

There are no answers yet.
Be the first to answer this question.