We are thinking about a 3 or 4 day vacation in February when college aged son has school vacation (unfortunately, it is the same mid-February week that all other schools are out). We have identified a few attractions such as FDR museum and home site, Vanderbilt Mansion, West Point. But, basically, looking for "indoor" ideas since there may be a lot of snow, and it could be freezing outdoors. Son likes museums and things of a historical nature.
Thanks in advance for any suggestions.