Paris Charles De Gualle International Airport is Europe's busiest airport in terms of aircraft movements and the world's busiest. It is the hub of Air France and a Euro hub for Delta...2 of the world's top 5 airlines. Paris CDG opened in 1974 at Roisy, replacing Orly Airport as Paris' primary airport.
CDG Terminal 2 (the largest complex at CDG) is divided into 7 terminals: A-G. 2A-2D were the original conventional 1980s era terminals which were designed as a more practical successor to T1. 2E-2G are the ultra-modern terminals which opened beginning in the early 2000s. These were where the U2 video "Beautiful Day' was filmed just prior to the opening. Terminal 2E is notorious for its partial collapse in 2004 which claimed the lives of 4 people and was eventually demolished and rebuilt by 2007. 2E through 2G are the focal points for future expansion now underway.
Air France's (and KLM's) hub is at 2C through 2G. Other airlines operating at Terminal 2 include Japan, Korean, LAN, Ethiad, Delta, Air Canada, American, Aeroflot, Emirates, Saudi Arabian, Tarom, Oman, Royal Jordanian, and XL.