boston... there is a freedom trial map you can follow up that map,sorry i forget the name of different historical place. Bascially starts from boston common... there are around 25 spot,... u can take a duck tour.... if u like you can visit MIT AND HARVARD... yea there is an auquarium,preduntional tour to view boston city,science meuseum etc.. in nyc of course u might like to see Grand center may be.. may be zoo..dc as mention above.