The 21st Biennale of Sydney opens to the public this Friday, 16 March, presenting the work of 70 artists and artist collectives from six continents, at seven locations around Sydney, in a free, three-month exhibition running until 11 June 2018. This year, Australia's pre-eminent contemporary art event celebrates its 45th anniversary and has been curated by Artistic Director Mami Kataoka exploring the theme of SUPERPOSITION: Equilibrium & Engagement.