If your trip to Johannesburg is all sorted out but your travel itinerary is a little on the empty side, we can give you a few hints and tips.One glance at a postcard stand will tell you that a visit to Johannesburg is not complete without visiting Gold Reef City. As the most iconic sight in the area, you might want to spend more time here than a quick stop.You'll have to roll out of bed early if you're hoping to see all the interesting attractions this place has to offer. Carlton Centre and Museum Africa are no-brainers. Johannesburg Zoo and South African Museum of Military History can't be missed either.Near the city center, Johannesburg Art Gallery is one spot to consider adding to your must-see list. Ellis Park Stadium and Constitution Hill are also not far away and worth a pit stop.