GET IN FREE: You can get into 33 NYC museums and cultural places for FREE -- Like The METROPOLITAN Museum, New York Botanical Garden, the Staten Island Zoo and so much more...if you are a NYC resident just get your IDNYC card and you're home FREE. Deadline: end of Dec. To apply: http://www1.nyc.gov/site/idnyc/card/how-to-apply.page
The Transit Museum is awesome! $7 for adults. It is housed in an old station -- I almost waked by the entrance because to enter it you go downstairs just like a regular station. My favorite part was the old trains, you can go on them and see the old seats, maps. etc. Definitely worth checking out.