The British artistic team of Ackroyd & Harvey brought a deconsecrated South London church to life with common lawn grass. Along with more than a dozen helpers, the married couple applied 5,000 pounds of clay and germinating seed to the church's walls over a period of five days, creating a layer only millimeters thick.

With the artists misting the interior three or four times a day--a process shown in the ethereal, chiaroscuro image seen here--the shoots emerge into a blanket of greenery.