It was the tallest freestanding structure in France from 1889 to 2004 (when it was surpassed by one of the pillars of the Millau Viaduct; it's still the second-tallest). Must have been absolutely mind blowing at ~312m when it was new - the record was around 150m for centuries before it.
Internationally ambiguous though, the world at large equates football with FIFA and Australians picture something much larger with more foot to ellipsoid than a tiny US handegg court.
One statue of liberty (Liberty Enlightening the World, Liberty Island, NYC) is approximately 4 times the size of one statue of liberty (Liberty Enlightening the World replica, Île aux Cygnes, Paris).
I think the idea is that nobody has any sense, even a very rough one, of how tall the Statue of Liberty might be. It's not like you ever see it in person, and if you did most of it would be in perspective, which ruins your chances of determining its size.
Most people have enough trouble believing that their foot is the same length as their forearm. You never see your feet close up, either.
1 Statue of Liberty (including foundation) is roughly 1 American football field (excluding end zones)
1 Eiffel Tower is around 3 Statues of Liberty (each with foundation)... which is almost 1600 bananas