CHICAGO (WLS) -- Aon, a global financial risk consultant company, is planning to buy out competitor Willis Towers Watson. The deal, valued at about $30 billion, could potentially impact the name of ...

The insurance giant has leased two floors in the city's tallest building, whose owner is working to restore its value amid brutal times for office landlords.

Completed in 1973 and for 25 years the tallest building in the world, the 110-story Willis Tower has marked a major milestone in its transformation with the completion of a new Skydeck experience ...

The Sears Tower was the world’s tallest building until 1996, when it was surpassed by the Petronas Twin Towers in Kuala Lumpur, Malaysia. With clear weather, four states are viewable up to 50 miles ...

Gift Article 10 Remaining As a subscriber, you have 10 articles to gift each month. Gifting allows recipients to access the article for free. A California real estate investor has purchased a ...