The Friskies® Cat Habitat was graciously designed and constructed by Purina, in consultation with a well-known cat behaviorist. All of the surfaces are covered in cat-friendly materials so our feline inhabitants are able to roam freely, play, and socialize with their cat friends 24 hours a day. Located across the street from our Adoption Center, the Cat Habitat gives cats a chance to stretch their legs, sharpen their claws and mingle with their friends. This open-space living is especially helpful to, and appreciated by, cats that have been in our care more than 30 days. http://www.animalleague.org/adopt-a-pet/cats/cat-habitat.html According to Friskies, it opened in 2004.