Travelling out of the country is always a delight. And even after a long flight, stopping at a duty free is practically a law. This week, studies revealed by the website "luxuo" show the busiest duty free shops in the world, and you know which one came first? No other then the one in Dubai´s International airport, who scored a total of U.S. $ 1.14 billion in 2010.
* Right after, are the duty free shops of Heathrow, London, Seoul and Incheon, South Korea. In addition to these, there are other two big sellers, one at the Changi airport in Singapore, and one in Frankfurt-Main, Germany.