Johannesburg ( joh-HAN-iss-burg, US also -HAHN-, Afrikaans: [jʊəˈɦanəsbœrχ]; Zulu and Xhosa: eGoli [ɛˈɡɔːli]) (colloquially known as Jozi, Joburg, Jo'burg or "The City of Gold") is the most populous city in South Africa with 4,803,262 people in the City of Johannesburg alone. It is a conurbation engulfing many formerly separate cities and towns and is classified as a megacity. It is one of the 100 largest urban areas in the world. It is the provincial capital of Gauteng, the wealthiest province in South Africa.
https://en.wikipedia.org/wiki/Johannesburg