The Great Wall has long been a symbol of China, but a problematic one - an authentic experience can be hard to find, and in the modern day China wants to be seen as open and inviting, but a wall closes off, and keeps people out. Associate Professor James Leibold (Department of Politics and Philosophy, La Trobe University) and Dr Graeme Smith (Research Fellow at the Australian National University) take Matt Smith on a tour of the Great Wall of China.