The Largest Green Wall in North America

Photo via mwms1916/Flickr

The 17 public restrooms at Pennsylvania's Longwood Gardens feature the largest green wall in North America (14 ft high and 300 ft long),  boasting "over 47,000 different types of plants."

"Caring for the environment is one our tenets" at Longwood Gardens, says communications manager Patricia Evans, who also illuminated that some of the bathrooms are actually built into the side of the hill, which helps with heating and cooling.

More: Curbed National