Beijing Capital International Airport (airport code PEK) in China is the busiest airport in Asia and the 2nd busiest in the world. The airport hosts over 73 million passengers annually with over 70 airlines flying to over 200 cities worldwide. The airport has three terminals. Terminal 1 handles domestic flights, while Terminal 2 handles international flights and flights between Hong Kong, Macau and Taiwan. Terminal 3 was constructed to handle visitors for the 2008 Olympics and is the 2nd largest terminal in the world. Located 20 kilometers north of central Beijing, the Airport Express Line runs from the airport directly into the city. Taxis and airport buses are also available.