The Venice Biennale art exhibition is due to officially open to visitors on Saturday. An international art audience is expected in the Giardini, the Arsenale and other venues in the historic northern Italian city for the 60th edition of the exhibition, which runs until November 24. Alongside the documenta in the German city of Kassel, the art biennial is considered the most important presentation of contemporary art and attracts artists and guests from around the world. This year’s edition focuses on the experience of foreignness and the themes of migration and exile. Under the title “Foreigne…