Johannesburg, South Africa. Friends who are from there and now emigrated to Portugal told me to NOT go to downtown, and stay in Rosebank. My Namibia guide told me the same thing. And I'm not ignoring the danger everyone warned me about -- even the taxi drivers made me put my backpack and any bags in the trunk because of the danger of "smash and grab" when you stop at a traffic light. But Rosebank is a suburb and doesn't feel like I'm in Johannesburg at all. Fortunately, I was told about a street photographer and he walked me around the city for three days. He's out and about on the street so much that people greeted him up and down the streets. SO glad to have had that opportunity.