I use a Mac. One of the keys on a Mac keyboard is the Command key, which sports an apple (like the logo) and a "feature" symbol (illustrated here). This symbol is used on road signs in Scandinavia to show historical sites or sites of special interest (like museums). This page gives a good description of how this symbol came to be used on the Mac and on the road signs, but what I can't find is what the symbol originally meant in Viking times (if anything). Can anyone tell me or point me to a web-page?