This spring is shaping up to be a busy season one on the art calendar, with both the Whitney Biennial and the Venice Biennale opening within weeks of each other in May, and notable exhibitions taking place all over in the coming months, from a trailblazing survey of art after the Stonewall Rebellion to retrospectives for Lino Bo Bardi, Huma Bhabha, Luchita Hurtado, and El Anatsui, to biennials in Havana and Honolulu. And this is not even including gallery shows and—one hesitates to even say it—art fairs. Below, a look at the winter’s most promising museum shows and biennials.