20th Century Fox (left), Dawn McKenna Group, Coldwell Banker Realty (right)
Sabina Horrocks
Youngrae Kim/Getty Images
Shelly October, Gabriela Ariza, Oz Chen
Chun-Teh Chen/Moment Editorial/Getty Images
Jessica Kirshner
FOX/Getty Images
The Stickney Water Reclamation Plant in Illinois is one of the largest wastewater-treatment facilities in the world, serving about 2.3 million people and cleaning an average of 700 million gallons of wastewater a day.
Courtesy of Jaime Muñoz