A columnist for the Irish Times describes some of the historical objects so cherished by his compatriots that they're considered key to Ireland's national identity, and tells us where you can see them on display. Then we take a closer look at the life of Michelangelo and the midlife mess that threatened to derail him from creating many of the world's most treasured works of art. And we learn about the many languages spoken in New York City that are on the brink of disappearing — and the efforts to preserve their unique vocabulary and sounds.

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