In Sydney, artist Mike Hewson has given new life to pre-cast concrete panels believed to have shaped the original Sydney Opera House, transforming them into a collection of tables and chairs now on display at Gallery Twenty Twenty. The panels, bearing a date from 1968, passed through decades of uncertain storage before finding their way into Hewson's hands — too significant to discard, too irregular to reuse through ordinary channels. His work asks a quiet but enduring question: what is the right relationship between a civilisation and its own material memory, and can the domestic act of sitti