Must-see art from Senegal's Biennale: Sculptures of sugar, paintings of old postcards

Outside, the afternoon heat has given way to the cool evening air. Bats swirl among the towering palm and baobab trees on the lawn of the Douta Seck cultural center in the bustling Medina neighborhood, just north of downtown Dakar. Inside, in the exhibition rooms, it's humans flitting about, …

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