Singer Building
... that the Singer Building, the world's tallest building when completed, later became the world's tallest building to be demolished?
... that the <b id="mwBhg"><a href="./Singer_Building" id="mwBhk" rel="mw:WikiLink" title="Singer Building">Singer Building</a></b>, the world's tallest building when completed, later became the world's tallest building to be demolished?