Google Doodle Honors Pioneering Willis Tower & Hancock Center Designer Fazlur Rahman Khan

Willis Tower Renovations Could Include Chance To Rappel Down Tower

Here's What Willis Tower Will Look Like After $500M Renovation

Video: Visit The Top Of Willis Tower, Where Its Iconic Lights Are Set Up

There Will Be A Gingerbread House Architecture Competition At Willis Tower

A Special Chicago Skyline LEGO Set Is Hitting Stores Next Month

Man Found Fatally Shot Near Willis Tower Wednesday Evening

The Chicago Sites Whose Official Names We Love To Ignore: A Roundup

The Willis Tower And Hancock Center Could Be Getting New Names

Investigating The Mystery Of The Willis Tower's Big Remodel

Watch Lightning Hit The Trump And Willis Towers During Tuesday Night's Election

Some Jerks In Chicago Are Making Phony Terrorist Threats

Hancock Building Could Lose Its Signature Name

Willis Tower Could Sell For $1.5 Billion

The Ledge At Skydeck Chicago Reopens

One Shot: H&M Needs A Geography Lesson

So Chicago Doesn't Have The Tallest Building In North America Anymore. Big Deal!

Photos & Videos: Epic Lightning Over Chicago

Video: Five Classic Chicago Skyscrapers in Animation

It's Studs Terkel, Not 'Turkel'

Ironworker Hung Mitt Romney Banner From Sears Tower Antenna

Video: Crews Install Antenna On Top Of Sears Tower

United Airlines Moving Corporate Headquarters To Sears Tower

Crews Remove Antenna From Top Of Sears Tower In Gutsy Helicopter Operation