If you're an expat living in Rome then you've heard of this shop countless times.
It's the one food shop we all love the most in particular: Castroni! Actually, in Rome there's dozens of Castroni shops, but they're the people who sell the Amercian food not available anywhere else on the peninsula!
So for example, that's where we all go when you need something like bisquick for pancakes and scones, corn syrup, maple syrup, brown sugar, Canadian whisky, chocolate chips, etc. They don't have everything, but that which they have weighs in the price of gold and silver for many.