Indira Gandhi International Airport (airport code DEL) is the 30th busiest by passengers and 8th largest in size in the world, serving over 16.5 million people annually. It has two terminals, Terminal 1 for domestic travelers and the recently built Terminal 3 for international travelers. Located 22 kilometers from Delhi, travelers can use the Delhi Airport Metro Express train line from Terminal 3 or take a bus or taxi on the 8-lane Delhi Gurgaon Expressway to get to downtown. The airport provides play areas for families along with complementary strollers for small travelers in Terminal 1D. The Eaton Smart Transit Hotel is located on the fifth floor of Terminal 3.