My fastest sent was from U.S.A. to France in 5 days. We were both surprised by that one! 
My fastest received are all at the 9 day mark from various countries (2x Finland, Germany, Netherlands, Japan).
This was really really fast!
A few weeks ago, two cards from Asian countries reached me surprisingly quickly:
My fastest intercontinental cards, sent from the Netherlands 
5 days to Japan:
7 days to USA:
17 days to Australia:
22 days to Brazil:
Special mention, fastest to Russia (Siberia) in 10 days: