Designed by Czech architects Pavlína Doležalová
and Jan Smékal
, the spiky, spiraling skyscraper
is covered with algae and is designed
to clean polluted city air. The "City Respiration Skyscraper
" is a helicoidal structure reaching 240 meters high. The primary structure is a concrete
ribbon covered with the air-cleaning algae. It is then covered with concrete three-spike units inspired by sea sponges. The unique helicoidal shape allows it to act as a chimney, drawing warm, polluted air from below and pulling it upward, both filtering and oxygenating it. It is thought that a strategically placed network of these skyscrapers in the most polluted areas of a city could clean the air of that city in a few weeks.