The 3 largest airports in the world

1- Denver International Airport :
The largest airport in the United States, occupying an area of 137.2 square kilometers and carrying 31 million passengers a year.

2- Dallas Fort Worth International Airport :
Located between Dallas and Fort Worth, Texas, the airport is the second largest airport in the United States, with 78 km² and 63 million passengers a year.

3- Shanghai Pudong International Airport :
Shanghai Pudong Airport is one of the most important airports in the world because most of the visitors to Asia pass through to reach Asia. The airport occupies an area of 33.5 square kilometers, with 52 million people traveling annually.