An unusually subdued Mark Wallinger exhibits his humble Christ before Pontius Pilate in the main room of the Secession. The lonely statue with amplified street noise lacks the element of surprise which astounded passers-by in London’s Trafalgar Square but if you’re lucky to visit on a slow day, it has a strange meditative quality. In the Ver Sacrum room there is a continuous showing of Wallinger’s Ecce Homo video, slo-mo images of passengers emerging through automatic doors. The downstairs gallery is taken up with Rita McBride’s transformation of the Secession building into various high-rise blocks, with the entrance as a plinth and the gilt dome atop.