The Kowloon Walled City Park was a portion of Hong Kong that was originally set up by citizens to protect themselves from pirates, then later taken over by vagrants. It evolved into anarchy, with streets covered in trash and maze-like self-constructed corridors made by local squatters. Buildings became so stacked and gigantic that citizens needed to install fluorescent lights to illuminate the lower tiers that sunlight could not reach. In contrast to orderly Chinese society, Kowloon was filled with unmonitored brothels, casinos, drug use, factories and even food courts. The city was eventually torn down by authorities, but the city park still stands today.