the cordon of defensive structures at Malta
... that a nineteenth-century author wrote, "there is not a more complete system of fortifications extant, in any part of the world, than the cordon of defensive structures at Malta"?
... that a nineteenth-century author wrote, "there is not a more complete system of fortifications extant, in any part of the world, than <b id="mwBOE"><a href="./Fortifications_of_Malta" id="mwBOI" rel="mw:WikiLink" title="Fortifications of Malta">the cordon of defensive structures at Malta</a></b>"?