The Primary, Main New York Public Library on Fifth Avenue and 42nd street (backs up on the east side of Bryant Park) is extraordinary and special. It would take all day to view the various collections and rooms and exhibits that are there. Of course, a few rooms are blocked off for use only by scholars and those doing research but the collection of rare books and manuscripts is truly special. Further a significant wall exhibit with thirty to fifty photographs of the history of the Equal Rights Amendment is really quite something to walk through, read, and learn. Also the Gutenberg Bible from the mid-1400s with its hand-inked initials is quite mind-blowing (most likely the oldest book in their collection.) And be sure to take the free audio tour and digital guide...truly special. This is one extraordinary place to spend time in NYC.