Looking for a nice farm or ranch w/ bed & breakfast in MD DE PA or VA

I stayed at a nice bed and breakfast awhile ago on a ranch and visited nearby attractions (museums, hershey park, cow milking stable, etc). i want to find another one to stay at for a asummer trip. i dont want to stay at a "resort"....i want to stay at an authentic ranch or farm with crops and animals and everything but I have no idea where to start searching. just get away from everything and stay out in the country for a few days.... any recommendations? all help appreciated.