From OpenStreetMap Wiki
|tourism = attraction|
|A general tourist attraction.|
|Used on these elements|
|Status: In use|
|Tools for this tag|
|This tag page is a stub. You can help OpenStreetMap by expanding it.
Similar pages for structural reference; Tag:railway=tram, Tag:waterway=dock
A general tourist attraction.
This tag is often used in addition with other tags (like historic=*) to express that the place is interesting for tourists.