From Poland’s first presentation by a Roma artist to a high-tech creature at the Korea Pavilion, here is our pick of the biennale’s best.

After three years, the Venice Biennale has returned to Italy. In what has been described as the art-world Olympics, nations from around the globe organize presentations in a bid to gain international exposure for their artists. (The stakes can be high: The Polish pavilion, for example, receives more visitors during the first week of the Biennale than any of its museums draw all year.)

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