“At a time when cultural organizations struggle to hold onto their audiences, the ICA is Boston’s greatest success story.” Since its 2006 move to a new home designed by Diller, Scofidio + Renfro, “attendance has boomed, making it the second most visited museum in the region. And a string of recent high-profile shows has … changed the way Bostonians, traditionally more attuned to Sargent and Monet, look at contemporary art.”