Each of the above maps represents objects mapped on OpenStreetMap which have a tag which corresponds to a single word. Together they spell out a topical phrase:
- Happy. Actually name=Happy's as for some reason I had not spotted lots of name=Happy in Europe.
- 10th. A minor fudge, using tiger:name_base=10th and restricting it to Pennsylvania to reduce the amount of data returned.
- Birthday. A couple of retail places in Japan have name=Birthday.
- OSM, A real fudge, I used source:name=OSM (an interesting recursive defintition in itself)