| Willis TowerDownload Project Factsheet | |
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| | | News Articles | | Combining the World's Great Skyscrapers into One Skyline |
| CTBUH Global News, 2013-01 |
| Willis Tower Exhibit Celebrates Its Omnipresence in the City |
| CTBUH Global News, 2012-10 |
| Willis Tower Signs Airline Tenant |
| CTBUH Global News, 2012-08 |
| Site Names World's Ten Best Observation Decks |
| Viator Travel Blog, 2012-08 |
| Controversy over Willis Tower Joke |
| CTBUH Global News, 2012-08 |
| Should Antennas Count in Height Measurements |
| MSNBC.com, 2012-04 |
| Would the Sears Tower have survived 9/11? |
| The Reader, 2011-09 |
| For Sale: Willis Tower, The Nation's Tallest Building |
| Chicago Sun-Times, 2011-06 |
| Chicago's Willis Tower to Become a Vertical Solar Farm |
| inhabitat, 2011-03 |
| Top 10 steel skyscrapers |
| arabianBusiness.com, 2010-10 |
| Top Illinois Engineering Honors for 2010 |
| Chicago Tribune, 2010-06 |
| Green Giants: Retrofits for the 21st Century |
| CTBUH, 2010-04 |
| Willis Tower Owner's Rethinking $350-million 'Green' Project |
| ChicagoRealEstateDaily.com, 2010-03 |
| They Might be Giants |
| The Architect's Newspaper, 2009-10 |
| Bermuda Broker Willis Gets its Name on America's Tallest |
| The Royal Gazette, 2009-07 |
| As Unbreakable as ... Glass? |
| The New York Times, 2009-07 |
| Sears Follows Empire State Example |
| World Architecture News, 2009-06 |
| What's in a name? Plenty. |
| Chicago Tribune, 2009-03 |
| Forget Sears Tower With a Silver Paint Job |
| Chicago Tribune, 2009-03 |
| Sears Tower in Silver? |
| Chicago Tribune, 2009-02 |
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