> a floral symbol that was used in Sweden to indicate an interesting feature or attraction in a campground

which is something entirely different. (It might still be wrong -- from what you say it sounds as if it's used in plenty of places other than campgrounds -- but it isn't wrong in the way you imply it is.)

It literally means "worth seeing".

It's not even "belvedere" or "tourist attraction", which tell you the type of thing on maps in other countries.

I've always liked it for the ambiguity.

And the shape captures a simplification of early viking forts: http://www.planetware.com/map/trelleborg-viking-camp-c-1-000...

In that respect, the icon means tourist attraction.