Hi Thad,
I helped with the Lighthouses schema in Freebase.
:-)
We have imported the LoL into OSM (40'000 lights), and show them on OpenSeaMap: http://map.openseamap.org/?zoom=13&lat=54.47933&lon=10.27177&lay...
It would be great to have a popup in the chart which shows: - Wikipedia-link to the lighthouse - Commons picture of the lighthouse - list of all data about (character, range, sectors, hight, etc.
It would be great to have an infobox in Wikipedia, filled with data from Wikidata.
It would be fine to find somebody family with Wikidata, who can build the structure :-) and has an idea how to get the databases congruent (OSM and WD).
Best regards, Markus
PS: 3 Mio Wikipedia articles we have already in the chart: http://map.openseamap.org/?zoom=12&lat=54.449&lon=10.23044&layer... also some lights - but no systematic