Originally a residential area, Sandton is now home to the Johannesburg Stock Exchange and the enormous Sandton Convention Centre, which hosts large conferences and concerts. In the large and expensive Sandton City Shopping Centre and adjacent open-air Nelson Mandela Square (also known as Sandton Square), you'll find trendy restaurants selling good but pricey food. There's also a small theater, Theater on the Square, which favors short, lightweight productions such as stand-up comedy. The convention center is next to the square.
But Sandton is not all glitz and glamour—a few miles from the Sandton City Shopping Centre and part of the large suburb is the township of Alexandra, home to an estimated 500,000 people, mostly living in overcrowded, squalid conditions in shacks and rented run-down houses.