SESC Pompéia is a major cultural centre in a converted factory complex, best known for Lina Bo Bardi's bold concrete architecture and its lively programme of concerts, exhibitions, theatre, workshops, and public events.
Even without a ticketed performance, it is worth visiting for the architecture and the way the complex is used by locals throughout the day. Check the current programme before going, as the strongest reason to visit is often a specific show or exhibition.