East Coast Vacation Spots?

I live in Hawaii, and am gonna be going home to visit my siblings and their families. We all have kids that are mostly all teenagers. We are looking for some great vacation spots that mostly all will enjoy. We have thought about Disney World, but some of my family are not able to afford that at this point.

could you give me some ideas that would be a great vacation? Im not really into the whole beach thing, since I do live in Hawaii, but am willing to go anyways, just to make others happy and have a wonderful vacation.

Thanks in advance
Also were looking for the vacation to be at least 3-7 days