One of the many fundamental milestone along the way to translating from Italian to English is understanding when you should use plural and when the singulars is appropriate. It’s the kind of mistakes a translators doesn’t make when he grew up speaking the English (but we’re so EXPENSIVE!).
Who cares, though, when you’ve managed to beat out the ancient and classical city of Smirne, Tacchino, as the site of Expo 2015!!