I spent time there for one day during August 2008, it was very interesting for me to see lot of difference things over there. Johannesburg is well known in short as Jo-Burg or Jozi. The heartbeat of the country. It's the economic and cultural centre of South Africa, where people work hard and play harder.
These two cards I bought them at Johannesburg Airport, wanted to keep in my blank card collection. One represent the beautiful night light, and another one showing sun rise bring the shine to city. The back side of each card showing the animal footprint, not sure you can see it clearly. It is very cute.