Tickets
Ticketmaster

Museums/Attractions:
American Museum of Natural History
Bronx Zoo
Carnegie Hall
Central Park
Empire State Building
Ellis Island
Lincoln Center
Madison Square Garden
Metropolitan Museum of Art
Museum of Modern Art
New York Botanical Garden
South Street Seaport
Statue of Liberty
Times Square
Whitney Museum of American Art

For a more comprehensive list, go to http://go-newyorkcity.com/