The 1 kilometre high building

The world waits anxiously in anticipation for the start of constructing the tallest building mankind has ever know. The Nakheel tower, over 1 km up in the sky, a truly skyscraper. Some information are still secrets to prevent rivals from coming up with even higher tower.
But these are known:
• more than 200 floors and 150 lifts
• 30,000 workers involved
• 10,000 parking spaces
• more than 19,000 apartments
• 3,500 hotel rooms




The exact construction cost was not revealed, but using the US$4b tag on the Burj Dubai it can sound scary.




Even before construction begin, the logistic part is mind boggling. The quantity of the reinforced steel bars, the expected half a million cubic metre of concrete etc.
How to get the concrete up to that dizzy height is a challenge itself.
And yes the construction will take 10 years, where a child grows from primary one to secondary four !