More than 30 years ago, New York’s Guggenheim Museum acquiesced to the complaints of a number of artists involved in the museum’s sixth International exhibition, and removed a massive piece of installation art, which was supposedly blocking views of other works, from its center well. “An acrimonious debate about the work’s removal continued long after the event had passed, leaving lasting antipathies between artists and leading to the departure of a curator, Douglas Crimp.” This week, Daniel Buren, the artist responsible for the offending work, returns to the Guggenheim with his own show, and the centerpiece is a massive tower of mirrors that dwarf the piece the museum once felt compelled to reject.