Here are some recommended links:
Museum of Mathematics
http://momath.org/contribute/?gclid=CJjD-ury1r4CFbIDOgodtQEA6g
Museum of Natural History
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=museum%20of%20natural%20history
New York Historical Societyhttp://www.nyhistory.org/exhibitions/current-exhibitions
Metropolitan Museum of Art
http://www.metmuseum.org/exhibitions/current-exhibitions
Guggenheim Museum
http://www.guggenheim.org/new-york/exhibitions
Museum of Art and Design
http://www.madmuseum.org/exhibitions
Jewish Museum
http://www.thejewishmuseum.org/Exhibitions
Museum of Modern Art
http://www.moma.org/visit/exhibitions
Rubin Museum
http://www.rubinmuseum.org/
Brooklyn Museum
http://www.brooklynmuseum.org/exhibitions/
Museum of Mathematics
http://momath.org/contribute/?gclid=CJjD-ury1r4CFbIDOgodtQEA6g
Museum of Natural History
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=museum%20of%20natural%20history
New York Historical Societyhttp://www.nyhistory.org/exhibitions/current-exhibitions
Metropolitan Museum of Art
http://www.metmuseum.org/exhibitions/current-exhibitions
Guggenheim Museum
http://www.guggenheim.org/new-york/exhibitions
Museum of Art and Design
http://www.madmuseum.org/exhibitions
Jewish Museum
http://www.thejewishmuseum.org/Exhibitions
Museum of Modern Art
http://www.moma.org/visit/exhibitions
Rubin Museum
http://www.rubinmuseum.org/
Brooklyn Museum
http://www.brooklynmuseum.org/exhibitions/