Ripley's Believe It or Not! is a franchise, founded by Robert Ripley, which deals in bizarre events and items so strange and unusual that readers might question the claims. The Believe It or Not panel proved popular and was later adapted into a wide variety of formats, including radio, television, comic books, a chain of museums and a book series. The Ripley collection includes 20,000 photographs, 30,000 artifacts and more than 100,000 cartoon panels.