Here is the list of the world's top 10 busiest airports by passenger traffic in 2010, according to the data provided by Airports Council International. A passenger is described as someone who arrives in, departs from, or transfers through the airport on a given day.

Hartsfield-Jackson Atlanta International Airport, also known as Hartsfield or Atlanta Airport, is the world's busiest airport by passenger traffic and number of landings and take-offs since 1999.

Allen Stanford
Texas billionaire Allen Stanford arrives at the Federal courthouse in Houston, in the custody of US marshalls, in the June 25, 2009 file photo. REUTERS
Pennsylvania