HDsheet

Transparent balcony on 103 floor skyscraper the Sears Tower in Chicago glass balconies at Chicago's Sears Tower all seem to agree: The first step is the hardest. The balconies are suspended 1,353 feet in the air and jut out four feet from the building's 103rd floor Skydeck. (July 2 report)

One World Trade Center becoming the tallest building in New York, EarthCam has released an exciting time-lapse movie showcasing the construction progress from 2004-2012.construction on ground zero is start in 2004 and know they have one year to bulit the new tallest building in new york.many people think its impossible to comple let see what happan Watch years of construction in just two minutes