Polanco metro station
... that the giant piano-shaped staircase at Polanco metro station is fully interactive?
... that the giant piano-shaped staircase <i id="mwA6s">(pictured)</i> at <b id="mwA6w"><a href="./Polanco_metro_station" id="mwA60" rel="mw:WikiLink" title="Polanco metro station">Polanco metro station</a></b> is fully interactive?