Google AdWords. The certificate expires September 30, 2012.
Here's the question: where were these pictures taken? Hint: it was not in the U.S. This is an easy one, and both pictures were taken in the same place. Give us the city and the country and you will win the prize. Votes must be received by September 1, 2012. We will announce the winner that day. The first person to guess correctly will win.
Good luck and have fun!