Francis Alys's Fabiola (Installation view) (2007).Image courtesy of the Hispanic Society of America and Dia Art Foundation, New York.

Francis Alys casts an obsessive eye on fourth-century Roman Saint Fabiola with some 300 portraits. It's like Warhol gone Catholic! Fabiola is up at the Hispanic Society of America through Spring next year, and marks the onset of a three year collaboration between the Society and bigwig arts foundation, Dia. —Rachel Wolff