On busy Diagonal Street with its traders and blanket shops, colour and bustle you can get a rare sense of an earlier Johannesburg. At 11 Diagonal Street is a building designed by architect Helmut Jahn to resemble a multi-faceted diamond, with immense sheets of glass reflecting the city at different angles. This street was the heart of Johannesburg's early gold rush and developed into a racially mixed area where trading continued despite the proscriptive laws later introduced. A mix of architectural styles characterises the area. This is a great place to buy fabrics, examine traditional artefacts, see public art and soak in the city atmosphere. Dress for the city in this area, and don’t bring any valuables. See Tours.