What are the best things to do along the east coast?|145113

I_m traveling from Washington to Boston, through Philadelphia and New York in January 2010. What are the best things to do in those cities?
Thanks!

when you go to new york take a day trip into the city or head out to long island and visit the beaches

newyork is awesome you see statue of librety and you should go to massuchusets and you see alot of stuff form the wars and if you go to hershey penn. you will see a super awesome chocolate city muahaha