Ladurée is the super-lux bakery that has been turning out its world-famous double-decker macarons since 1862. While you can get your fix at shops on five continents, make a pilgrimage when you're on the Champs-Élysées to the Ladurée tearoom and bakery. Expect a line. There's also a shop at CDG for last-minute souvenirs.

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