Like New York, the City of Lights has experienced a dramatic price drop in the past two years. The 2009 Prices and Earnings report places Paris in ninth place, while this year's summary shows the city in the No. 12 slot. But before you start planning to take advantage of these price plunges, remember that you still have to contend with the exchange rate. Europe may be facing hard times, but the Euro still has roughly 30 cents on the U.S. dollar.