Interesting fact:

Some airports are bigger than entire countries! It may seem unbelievable, but take for instance the King Fahd International Airport in Dammam, Saudi Arabia. This huge airport sits on nearly 200,000 acres of land, making it bigger than the entire country of Bahrain. While we’re talking about size, New Bangkok International Airport in Thailand has the world’s tallest air traffic control tower at 132.2m (434ft).