Airport runway in Portugal

Civil Engineering at its best…...

…..In Portugal …..
a special airport ….. the airport's runway with a length of 2781 meters, of which 1000 meters of the runway is supported by 180 pillars, each pillar is 50 meters height (about 17 floors), and surprisingly, the runway designed is for B-747 air craft.
Look at the cars parked below the runway…..