Hijacking the top comment to make it more clear since lots of comments here seem confused:
This map mainly shows Wikidata items, in addition to some "orphan" images on Wikimedia Commons (a free media repo from Wikimedia foundation, mainly for used on Wikipedia but not exclusively), both are not technically the same as "Wikipedia" articles.
- Red dot: wikidata item without photo
- Green dot: wikidata item with photo
- Blue dot: Commons images without a wikidata link (keep in mind not all images need to have a link; some are just too trivial to have any wikidata item.)
> not all images need to have a link; some are just too trivial to have any wikidata item.
Only the most representative image(s) should be linked from the Wikidata item. More precise properties also exist, e.g. you can separately link an interior image of a building or a tombstone image of a historical person.
OTOH, all images can link to all the Wikidata items they depict. This is using Structured Data on Commons which is basically an extension dataset linking images to what they depict: https://commons.wikimedia.org/wiki/Commons:Structured_data
This map mainly shows Wikidata items, in addition to some "orphan" images on Wikimedia Commons (a free media repo from Wikimedia foundation, mainly for used on Wikipedia but not exclusively), both are not technically the same as "Wikipedia" articles.
- Red dot: wikidata item without photo
- Green dot: wikidata item with photo
- Blue dot: Commons images without a wikidata link (keep in mind not all images need to have a link; some are just too trivial to have any wikidata item.)
It doesn't directly show Wikipedia articles around you. But Wikipedia has that feature built-in (albeit not an map): https://en.wikipedia.org/wiki/Special:Nearby
Edit: it looks like it does have Wikipedia articles as well in some small yellow dots.