The Detroit News ran an interesting article over the weekend about the state of Michigan's lighthouses. Once a necessary navigation tool for the ships that plied the Great Lakes - now decaying in their obsolescence and abandoned by the Coast Guard. The bottom line (as with most things these days) is the cost of maintaining these structures that are no longer needed due to technological improvements such as GPS.
The tab to restore the lights or keep them looking as they once did has been paid by private organizations and groups of volunteers. Unfortunately, these folks can't raise funds quick enough. Michigan has lost about 350 lighthouses just since 1995 according to the Detroit News article.
Read the article at The Detroit News.