I’m not sure why exactly, but lighthouses and amateur radio seem a good fit. There’s even an Amateur Radio Lighthouse Society. Founded in 2000 by Jim Weidner, K2JXW, the ARLHS claims to be the only society devoted exclusively to Maritime Communications and Ham Radio, Lighthouses and Lightships.
I comment on this because this past week, I received two QSL cards featuring QSL cards. The first one was from W1VRY. It features the Portland Head Light (ME).
The second, from W1ACT, features the Gay Head Light in Acquinnah, MA.
I probably have one or two more. I’ll have to dig through my collection and see if I can find them.