More than 1.7 million people make their way to Willis Tower ... glass – even the floor. Travelers also liked the video screens that show what it would be like to stand 103 floors above other ...

An curved arrow pointing right. The Ledge is a glass box on the 103rd floor of the Willis Tower, the eighth-tallest building in the world and the tallest building in the Western hemisphere.

CHICAGO (CBS) -- "Think about it. There must be higher love. Up in the tower formerly known as Sears above ... one the five glass floor balconies that just out from the tower with glass floors ...

British insurance broker Willis Group Holdings Ltd. will lease space in the iconic Sears Tower, changing the building's name to Willis Tower. Video courtesy of Fox News.