Fascinated by billionaire Ira Rennert's 10,000-square-foot museum addition on the grounds of his Sagaponack, N.Y., property, Curbed Hamptons hired an aerial photographer to see what all the fuss is about. Click over for the video—as you watch, remember that Rennert's 66,000-square-foot main house is the largest in the country. [Curbed Hamptons]
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