Taking Suggestions

Ok, I have a three-day weekend coming up and I figured I might as well go somewhere cool instead of being cooped up in my apt again. So far my sister and Cindy have suggested Boston while Kodiggity recommended Niagara Falls, which is way too far for me to drive by myself. Any more suggestions for a fine 3-day East-Coast romp? I will probably get depressed midway through anyways since I hate doing things by myself.