纵观整个20世纪,全世界最高的建筑物当数马来西亚首都吉隆坡的佩特罗纳斯大厦,该大厦由两座88层高、彼此对称的姐妹塔楼连接而成,共设有窗户3.2万扇,楼高为452米。但到21世纪,其全球第一高楼的美誉将不得不让位于其他城市。据悉,迄今全球至少已有5座城市计划在下个世纪兴建更高的摩天大厦,其中芝加哥最为雄心勃勃,它将建造一座21世纪全球第一高 Throughout the 20th century, the tallest building in the world was the Petronas Complex in Kuala Lumpur, Malaysia. The building is connected by two 88-story, symmetrical sister towers with a total of 32,000 windows. The height of the building is 452 meters. But by the 21st century, its reputation as the world’s tallest building will have to give way to other cities. It is reported that at least five cities in the world have planned to build taller skyscrapers in the next century. Of which Chicago is the most ambitious, it will build a 21st century global high.