The exterior of the new wing—located on the western side of the American Museum of Natural History on Columbus Avenue at 79th Street—is clad in Milford Pink Granite and features rounded windows that use bird-safe fritted glass.  Photo 3 of 10 in A Four-Year-Old Reviews the American Museum of Natural History’s New Gilder Center

A Four-Year-Old Reviews the American Museum of Natural History’s New Gilder Center

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The exterior of the new wing—located on the western side of the museum on Columbus Avenue at 79th Street—is clad in Milford pink granite with rounded windows that use bird-safe fritted glass.