Not far from Denver, the capital of Colorado state in the US, there is Rocky Mountain Arsenal National Wildlife Refuge. More than 1.5 million items fill the shelves of the warehouse on the wildlife refuge, including heads of lions and tigers (pictured), stuffed animals, skins, clothes and shoewear made of rare animals, seized by the U.S. Fish and Wildlife Service's Office of Law Enforcement from illegal traders and poachers. The exhibits are used for educational purposes by the schools, universities and non-governmental organizations.