594 Basque Carnaval; Venice Sinking; Ghosts in Papua New Guinea

Learn why acqua alta episodes are flooding Venice more frequently — and what it was like to live through a week of near-record floods last November. Hear what it takes to hike across Papua New Guinea on the notorious Kokoda Trail. And discover the traditions behind the February "Carnaval" celebrations in the Basque Country of France and Spain.

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