Looking Down 1,400 Ft From the "Ledge" in the Willis Tower Skydeck

Looking Down 1,400 Ft From the "Ledge" in the Willis Tower Skydeck
Originally uploaded by f 2.8

Willis Tower, formerly named Sears Tower, is a 108-story, 1451-foot (442 m) skyscraper in Chicago, Illinois, says Wikipedia.[1]

At the time of its completion in 1974, it was the tallest building in the world, surpassing the World Trade Center towers in New York, and it held this rank for nearly 25 years.

The Willis Tower is the tallest building in the United States and the fifth-tallest freestanding structure in the world, as well as the fifth tallest building in the world to the roof.

In March 2009 London-based insurance broker Willis Group Holdings, Ltd., agreed to lease a portion of the building and obtained the building's naming rights.[3] On July 16, 2009, the building was officially renamed Willis Tower.