This venerable institution has unparalleled collections and is also just plain fun for any age. Highlights are: special exhibits (-whatever's on as a temporary exhibit is likely to be really well done); the Hayden Planetarium in the Rose Center for Earth and Space; and -- dinosaurs! Real, giant, dinosaur skeletons, many of them, and some you can even touch!
Plan on a long visit, and take a break at the kid-friendly restaurant on the lower floor.
Explore more at the Natural History Museum site.
Note: This museum is on the upper east side of Central Park-- another definite must-see for any visitor in New York. After you visit the Natural History Museum, take some time to walk through Central Park.
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