Sardinia, Italy, was the first Blue Zone — where people regularly live to 100 — to be identified. Dan Buettner, who studies these longevity hotspots, has a new Netflix series out about Blue Zones.

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PORTO CERVO, Sardinia — Costa Smeralda, Sardinia brings together acclaimed Italian and international chefs to celebrate Italian and Sardinian cuisine at the inaugural Porto Cervo Food Festival Sept.

I've been to all 20 regions of Italy and visited famous cities like Milan and Rome. After I spontaneously visited Cagliari, the capital of Sardinia, it became my favorite Italian city. I love Cagliari ...