I think Marblehead Mass. could be a great choice. It's the only skeleton tower in New England. The only drawback I see is that it's a virtual carbon copy of Sanibel, except it doesn't have any buildings around it. The tower construction, far as I can tell from visiting it, is exactly the same as Sanibel's. So this might be a case of "been there, done that" for Harbour Lights.
[This message has been edited by Bill Harnsberger.]