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The expansive site-specific works will help to define the look and feel of the Peter Zumthor-designed building, and in the case of one artwork — a 75,000-square-foot stretch of embellished and brushed concrete — literally provide the ground on which visitors walk.

"We make decisions on how best to manage increased flood risk on a site-specific basis, using specialist knowledge and evidence of how each river might respond to sediment removal."

L.A.’s Betye Saar, known for her assemblage work, will show a site-specific piece with Roberts Projects.

Directed by Ciaran O’Reilly, this immersive, site-specific show takes place in a Fifth Avenue mansion, where audience members mingle with the cast — led this year by Kate Baldwin, Christopher Innvar and Mary Beth Peil.

As a bonus, it provides worthwhile historical background for “Olafur Eliasson: OPEN,” that great, sprawling, eye-opening site-specific installation made for the Geffen Contemporary at MOCA.