A glimpse into the city of darkness, Hong Kong's Kowloon Walled City
Only thirty years ago, Kowloon Walled City was the most densely populated area on earth. After becoming unmanageable in the early 1990s it was razed, and the area is now a Chinese garden.
Sydney is in the middle of an infrastructure revolution, with several projects underway that will help the city cope with a rapidly growing population.
Children will be given an opportunity to build their own model house and learn about architecture in a Sydney Architecture Festival workshop on 2 October.