Madam Tussauds 
Magic After Hours
Magic at the Clock Shop
Magic, Unlocked
Magician, The
Maison Gerard
Majestic Theatre
Manhattan Theatre Club
Margot Samel
Marian Goodman Gallery
Marianne Boesky Gallery
Marinaro Gallery
Mark Morris Dance Group
Martos Gallery
Massey Klein Gallery
Matthew Marks Gallery
Mendes Wood DM
Mercer Labs
Met Cloisters, The
Metropolitan Museum of Art, The
Mezzrow
Miles McEnery Gallery
Mmuseumm
MoMA PS1
Morgan Lehman Gallery
Morgan Library & Museum, The
Morris-Jumel Mansion
Museum at FIT, The
Museum of Arts and Design
Museum of Modern Art, The
Museum of Television and Radio
Museum of the City of New York
Museum of the Moving Image