Skidmore, Owings & Merrill

Those who take an elevator up to the 103rd floor of the Willis Tower will find a renovated Skydeck Chicago. The main attraction is the Ledge, which consists of four glass boxes extending outward, allowing visitors to peer down at the city below.

SOM has completed work on the National Museum of the United States Army. The first museum to be dedicated to telling the story of the entire US Army, it features a striking stainless steel facade and has some energy-efficient features.

Skidmore, Owings & Merrill has previously designed some big buildings, including the world's tallest, but now it's creating a massive waterfront neighborhood with a supertall skyscraper inspired by the Fresnel Lens of a lighthouse at its heart.

SOM has been chosen, with local architect Fender Katsalidis, to design a pair of skyscrapers in Sydney's Central Business District. The AUD 2.5 billion scheme will feature high-tech facades that help ventilate the towers' interiors.

Skidmore Owings and Merril (SOM) has been given the nod to produce what will be Scandinavia's tallest building. The Polstjärnan (or Pole Star) skyscraper is due for completion in 2019.

Recent reports suggest that wooden skyscrapers could become a feature of our city skylines in the near future.

The Municipal Art Society of New York has announced four possible replacement designs for Penn Station and Madison Square Garden.

The 60-story Zhengzhou Greenland Plaza, the tallest building in Zhengzhou, the capital city of central China's Henan province, opened its doors earlier this month.

Work has commenced on SOM's 444-student "net zero" primary school on New York's Staten Island.

Three leading architects gathered last week at the third annual summit of The Municipal Art Society to present their visions for the dramatic redevelopment of New York's Grand Central Terminal, but only one included an enormous flying saucer.

Architectural practice SOM's 17.6-sq km (6.8-sq mile) master plan for Beijing Bohai Innovation City has won an international design competition, which, if fully realized, may set a new standard for environmentally-conscious urban planning.

The 71-story Pearl River Tower, described as one of the most energy-efficient skyscrapers in the world, has reached its topping out milestone on the way to its planned completion later this year.