Seeing the bulk of New York City's biggest attractions can mean spending a hefty chunk of a trip's budget on tickets. Empire State Building? $27. The Met? $25. The Guggenheim and the Whitney go for $22 and $20, respectively. Even the Frick is $20. But there's a lifetime of fun to be had without ever handing over a cent, and not just by taking on park trails, bike paths or window browsing.
Read more: http://www.lonelyplanet.com/usa/travel-tips-and-articles/76493#ixzz3jviig6Ws
Enjoy your sober lifestyle! and get busy! ;D