Chicago Weather: Flooding Causes Power Outage At Willis Tower Building owners said flooding on Lower Wacker knocked out the electricity.

Sears Tower was renamed Willis Tower after Willis Group, the global insurance broker, in a changing of the guard that underscores Chicago’s increasing importance as a business center. AP PHOTO ...

With the completion of the Shanghai Tower, Chicago's Willis Tower was pushed out of the top ten for the world's tallest buildings.

The observation deck was part of the Willis Tower's original plan to give back to the city. "There's pride. There's so much pride with Sears, now Willis Tower. It's ours. Chicago can claim that ...

NEW YORK | Blackstone is buying Chicago's Willis Tower, once called the Sears Tower, from 233 South Wacker LLC for an undisclosed amount.

Here’s some background information about Willis Tower, formerly the Sears Tower, located in Chicago. The Sears Tower was the world’s tallest building until 1996, when it was surpassed by the ...

Life-long Chicagoans grew up, staring up at the Sears Tower. But very few have actually visited the building that for a long time held the title of world’s tallest. Times have changed. It&#82… ...

CHICAGO The Sears Tower, one of the world's iconic skyscrapers and the tallest building in the U.S., was renamed the Willis Tower yesterday in a downtown ceremony.

"We certainly appreciate and understand the sentimental attraction to the Sears Tower name, and it’s certainly a Chicago icon," said Will Thoretz, a spokesman in New York for Willis Holdings Group.

CHICAGO — One of Chicago’s most beloved buildings – the Willis Tower – its golden anniversary on Thursday. “We are 50 years old,” said Lydia Jordan-Parnell, a Willis Tower spokesperson.

Willis Towers Watson has subleased about 65 percent of the office space it had in the tower that carries its name in Chicago. In the biggest sublease in the Windy City’s downtown since the start ...

Chicagoans don’t consider the Willis Tower, the former headquarters of Sears with its famous Skydeck, a culinary destination. Long lines of tourists routinely gather and wait for the elevators ...