Featuring 100,000 square feet of smog-filtering surface area, this structural facade will break down harmful oxides in sunlight to improve air quality all around it.

The building, designed by Italian firm Nemesi & Partners, is being created for an exposition in Milan themed around planet-friendly sustainable designs.

The amorphous and organic form is both a reference to trees and other types of air-purifying plants but also a way to provide a maximum amount of exposed surface.

Like a forest, this facade will cast complex shadows and provide shade in and around the building. Its form references both nature and man-made land art.

Rooftop solar panels tucked out of view will add a further but less-visible green dimension, generating electricity for the building below.