day beacons
...that day beacons and other navigational aids vary in standard designation worldwide much like driving on the right or left?
...that <b id="mwAjM"><a href="./Day_beacon" id="mwAjQ" rel="mw:WikiLink" title="Day beacon">day beacons</a></b> and other navigational aids vary in standard designation worldwide much like <a class="mw-disambig" href="./Rules_of_the_road" id="mwAjU" rel="mw:WikiLink" title="Rules of the road">driving on the right or left</a>?