Founded in 1891, the Giza Zoo in Cairo, Egypt, was once among the best zoos in Africa. But today it's a shell of its former glory, expelled from the World Association of Zoos and Aquariums in 2004 after failing an inspection. WAZA director Peter Dollinger wouldn't tell Reuters in 2008 why exactly the zoo was expelled, saying only that "There were things that were not acceptable."
Zookeepers reportedly augment their salaries by charging patrons to enter the cages with the animals, and two men broke into the zoo in 2007, killing two camels. Dozens of birds died from avian flu in 2006, and more than 500 were slaughtered to stem the outbreak. According to the Global Post, zoo workers also inhumanely killed two gorillas in 2004 thought to be infected with the Ebola virus.