Contributed by Michael Brennan / The 60th Venice Biennale runs through the fall. This storied, much imitated global event, like an Olympics or World’s Fair, consists of individual national pavilions and topical exhibitions. They occupy Venice’s Giardini and Arsenale. The Biennale generates numerous collateral exhibitions in palazzos, churches, and former warehouse spaces citywide. In addition to the officially sanctioned shows, there are a myriad unaffiliated exhibitions that try to pass themselves off as part of the Biennale by insinuation. It’s a lot to take in.