Life inside the densest place on earth: Remembering Kowloon Walled City (Photos from CNN)
Before it was demolished in 1994, Kowloon Walled City in Hong Kong was considered the densest settlement on earth, with 33,000 people living within the space of one city block.
A largely unregulated space, the Walled City grew massive as residents built new structures directly on top of existing structures.
"The Walled City was a kind of architectural touchstone in terms of what a city can be -- unplanned, self-generated, unregulated," says photographer Greg Girard.
Because of the government's hands-off approach to regulating the City, there were effectively no health or safety laws present
Many buildings enclosed within the Walled City had no access to outside light or air.
Deep within the building's darkness, a variety of small businesses flourished.
Despite the City's wild appearance, photographer Greg Girard found that the people inside lived just like people anywhere else.
Planes landing at Hong Kong's nearby airport, Kai Tak, often roared overhead. (I think this is the most famous photo)
Architect Aaron Tan wrote his graduate thesis on the Walled City 20 years ago, a process he says humbled him. "We started to see that people could be more intelligent than us, the designers," he says.
The Kowloon Walled City has inspired countless settings in video games, comic books, and Hollywood films.
Photographer Greg Girard said it was sad to see the Walled City finally demolished in 1994.
"Every city realizes too late to start caring about their architectural heritage... by the time you start caring about it, it's too late to save it."