Unisphere
... that the Unisphere was designed based on a doodle on the back of an envelope?
... that the <b id="mwA80"><a href="./Unisphere" id="mwA84" rel="mw:WikiLink" title="Unisphere">Unisphere</a></b> <i id="mwA88">(pictured)</i> was designed based on a doodle on the back of an envelope?