JoJo, the “Dog face Boy.” (1900). Hulton Archive / Stringer Clementine Clatteaux Delait a bearded lady. (1907). Topical Press Agency / Stringer German strongman Eugene Sandow and Goliath wrestling with “a bear.” (1910). Hulton Archive / Stringer Anita, ‘the Living Doll’, sits for a portrait. (1912). Topical Press Agency / Stringer A circus elephant balances on its front legs. (1920). General Photographic Agency / Stringer A female contortionist. (1925). General Photographic Agency / Stringer Daredevil Gladys Roy trains for her flying acrobatics by balancing on the rooftop of a skyscraper in Los Angeles. (1925). Topical Press Agency / Stringer A member of Sir Robert Fossett’s family circus grooms the show’s boxing kangaroo. (1940). Felix Man / Picture Post / Getty Images Mr Valenches holding two of his performing animals; a dog and a fox. (1908). Topical Press Agency / Stringer Jacko and Bess, two mandrills who perform at the Olympia Circus in London, wearing a fancy suit and dress in imitation of a smart couple. (1931). Fox Photos / Stringer Dixie the elephant from Whipsnade Zoo performs part of her repertoire with her keeper George Braham. (1932). Fox Photos / Stringer Man crushes a block placed on the stomach of a strongman. (1930). Keystone-France / Gamma-Keystone via Getty Images Samson Brown, the world’s strongest man, lets a motorcycle run over him. (1934). Fox Photos / Stringer A man carrying twins, two 36-year-olds who are part of a circus act, in his bags. (1935). General Photographic Agency / Stringer Members of Bertram Mills Freak Show are examined by a medical profession. On the examination table is the ‘Giraffe Necked Woman’. (1935). Hulton Archive / Stringer Facial contortionist Alfred Hyland, gurning during an exhibition in Glasgow. (1938). Fox Photos / Stringer The director of the Sarrasani Circus poses with a Sioux family in South Dakota, whom he was presenting as part of his circus. (1930). Keystone-France / Gamma-Keystone via Getty Images Czech showman Baron Richard Nowak, 19, stands 21 inches high & weighs 17 lbs., blowing on a trumpet as he nestles inside tuba player of the Hamid-Morton Circus. (1940). John Phillips / Time Life Pictures / Getty Images A seal performing in a harness, the trainer nearby, at a circus. (1942). Herbert Gehr / Time Life Pictures / Getty Images A strongwoman balances a piano and pianist on her chest. (1920). FPG / Hulton Archive / Getty Images Gargantua the Great, the famous giant gorilla featured in the Ringling Bros. and Barnum & Bailey circus, sustained a scarred face when a sailor threw acid in his face on the ship from Africa. (1940). Alfred Eisenstaedt / Time Life Pictures / Getty Images (via BuzzFeed)