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Giant Structures It is an impossible task to select the most amazing wonders of the modem world since every year more __1__ constructions appear. Here are three giant structures which are worthy of our __2__ although they may have been surpassed by some more recent wonders. The Petronas Twin Towers The Petronas Towers were the tallest buildings in the world when they were completed in 1999. With a __3__ of 452 metres, the tall twin towers, like two thin pencils, dominate the city of Kuala Lumpur. At the 41st floor, the towers are linked by a bridge, symbolizing a gateway to the city. The American __4__ Cesar Pelli designed the skyscrapers. Constructed of high-strength concrete, the building provides around 1，800 square metres of office space __5__ every floor. And it has a shopping centre and a concert hall at the base. Other __6__ of this impressive building include double-decker lifts, and glass and steel sunshades. The MiUau Bridge The Millau Bridge was opened in 2004 in the Tam Valley，in southern France. __7__ the time it was built，it was the worlds highest bridge, __8__ over 340m at the highest point. The bridge is described as one of the most amazingly beautiful bridges in the world. It was built to __9__ Millaus congestion problems. The congestion was then caused by traffic passing from Paris to Barcelona in Spain. The bridge was built to withstand the __10__ extreme seismic and climatic conditions. Besides, it is guaranteed for 120 years! | 
