11 Most Expensive Airports Ever Built in the World

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9. Suvarnabhumi Airport Bangkok, Thailand

The Suvarnabhumi Airport in Bangkok has the tallest free-standing control tower in the world, 434 feet tall. This is the #10 of the busiest airports in the world, handling around 55 million passengers. $3,88 billion was spent in building this airport and its 6 million square feet terminal.
Thailand


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