Having landed in Helsingborg in Sweden (before the bridge was built) I proceeded to drive north (over snow-packed roads) heading for Stockholm.
I stopped after a while to ask how far I still had to go and was told '10 miles'.
I hadn't realised that Sweden used miles, but I was even more confused when I hadn't reached my destination after 10 miles. I later discovered that Swedish miles are 10 kilometers long . . .
http://en.wikipedia.org/wiki/Swedish_mil