Johannesburg, colloquially known as Jozi or Joburg, is the most populous city in South Africa. Located on the mineral-rich Witwatersrand, it serves as the provincial capital of Gauteng, the country's wealthiest province. The city also hosts the Constitutional Court, which is the highest court in the nation.
Functioning as the economic capital of South Africa, Johannesburg is one of the 100 largest urban areas in the world. It is home to the Johannesburg Stock Exchange, the continent's largest stock exchange, and is recognized as the richest city in Africa by GDP and private wealth. Historically, the city has been a central hub for the international mineral and gold trade.