On my recent trip outside of the US. I took this shot of a gas station.

Now if you want to talk about expensive gas, take the above. The 9.29 ;- ( ;- is short for danish krone) is per liter in Danish Krone, so do some math:
1 liter = 0.26 US Gallon
1 US Gallon = 3.78 liters
1 liter = 9.29 ;- == $1.72
1 US Gallon = (3.78 liters * 9.29 ;- ) = 35.1 ;-
35;- = $6.53
Guess this is another reason why a lot of people rode bicycles there. While in Sweden I saw one place that had gas for 11.50 :- (:- is short for swedish krona), so that is about $6.45 per US gallon. Just be happy it has not reached this price yet in the US.
I am glad as right now to fill up my car completely would be almost $100 if I had it over there.
