In today’s “Today’s Pictures”featureover onSlate, Magnum presents photos of a subject near and dear to New Yorkers’ summertime hearts: stoops. Many of the photos, including some by Henri Cartier-Bresson and Bruce Davidson, feature the environs of our fair city. But the one pic that really caught our attention was from Marseilles, whereRene Burrisnapped some children at play on the patio of Le Corbusier’s Unite d’Habitation. Modern architecture never looked so fun.