Minneapolis Saint Paul International Airport (airport code MSP) is in the middle of the twin cities and is also a short driving distance from the Minnesota metropolitan areas of Bloomington, Eagan, Brooklyn Park and Richfield. The airport ranks 15th in North America for passenger traffic and is the 12th busiest in the US with over 32 million travelers annually. The airport has two terminal buildings, Terminal 1-Lindberg and Terminal 2-Humphrey. A light rail system connects the airport to downtown Minneapolis, the Mall of America and several other locations. Buses, taxis, shuttles and rental cars are also available. Twelve air carriers provide non-stop service to 114 domestic and 21 international markets.