The Sears Tower

THE SEARS TOWER

The Sears Tower is located in Chicago, Illinois, United Stated. The architect was Bruce Graham and structural engineer Fazlur Khan of Skidmore, Owings and Merrill. The Sears Tower was built between 1970 and 1973. It is a very skyscraper with 100 floors. It is 527 meters high. The style of the building is modern. It is made of glass and steel. It has been the tallest building in the United States since 1973, surpassing the World Trade Center, which itself had surpassed the Empire State Building only a year earlier. The tower has 108 stories as counted by standard methods, though the building owners count the main roof as 109 and the mechanical penthouse roof as 110.