"Wild, in the heart of the human zoo" - For more than a century, from 1810 to 1940, men have exhibited other men by presenting them as savages or monsters. More than a billion and a half visitors came to observe 35,000 exhibited around the world. They are called Little Capeline, Patagonian fuégienne, Tambo, aboriginal of Australia, Moliko, Kalina of Guyana, Ota Benga, Pygmy of Congo, Jean Thiam, Wolof of Senegal, Marius Kaloïe, Kanak of New Caledonia. —Ulf Kjell Gür

When Notre Dame Cathedral caught fire in 2019, Paris came perilously close to losing more than 800 years of history. As engineers rebuild, researchers use cutting-edge technology to piece together what happened and restore the cathedral.