Willis Tower is one of Chicago's most iconic skyscrapers and tourist destinations. Residents work in its offices, shop and dine in its entertainment centers and observe the Skydeck's unparalleled ...

An expert committee of architects on Tuesday announced that the structure atop the new One World Trade Center in New York City is a spire and not a broadcast antenna, bringing the building to a height ...

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 ...