unfinished buildings
...that there are many unfinished buildings throughout the world that may never be completed or demolished because of the costs involved?
...that there are many <b id="mwA0w"><a href="./Unfinished_building" id="mwA00" rel="mw:WikiLink" title="Unfinished building">unfinished buildings</a></b> throughout the world that may never be completed or demolished because of the costs involved?