“With more than 10,000 objects, 23,000 images and 500 hours of film and video, the 110,000-square-foot Memorial Museum opens with a collection and square footage to match many substantial museums. That’s why the museum, along with the memorial, cost a staggering $700 million, requiring a $24 adult admission and a $60 million annual budget that’s far from fully endowed. At such a scale, it cannot entirely avoid grandiosity.”