Frankfurt Airport (airport code FRA) sees over 52 million international passengers annually and is the world's 9th busiest international airport. Located in Germany, this central European airport is only a 3-hour flight from most major European cities and is nine hours from Chicago and 11 from Mumbai. The airport has two terminals, 1 and 2, with a third terminal under construction. Located 8 miles southwest of the city, there are two railway stations that can be accessed from the airport. The S-Bahn on Level 1 in Terminal 1 takes passengers into the city and the Deutsche Bahn Travel Center at the AIRail Terminal in Terminal 1, B Concourse, can take passengers throughout the region. For its many business passengers, the Frankfurt Airport also has a 36-room conference center that can serve up to 180 people and four on-site hotels including the Sheraton Frankfurt Airport Hotel and the Steigenberger Airport Hotel.