12 Alpena (MI 94)
latitude 45º 3' 27.5" N
longitude 83º 25' 22.5" W
September 25, 1999

Located right in the middle of Alpena, this is easy to find.  Having found it, the natural reaction is "so what"?

Note carefully that is is a lighthouse.  There is a ladder below the light and room inside to stand up.