Most skyscrapers are behemoths of steel, glass, and reinforced concrete.

As part of an ongoing project, researchers at Cambridge University, architects at Perkins+Will, and engineers at Thornton Tomasetti are proposing a timber skyscraper, called the River Beech Tower, in Chicago, Illinois.

The team sees the wooden tower concept as an especially sustainable type of architecture since the material is renewable.

Take a look at their proposal below.