The Mütter Museum is a medical museum located in the Center City area of Philadelphia, Pennsylvania. This museum is not for the squeamish as it contains a collection of medical oddities, anatomical and pathological specimens, wax models, and antique medical equipment. Part of The College of Physicians of Philadelphia, this museum's original purpose was for biomedical research and education. The museum boasts a large collection of over 20,000 specimens, 13% of which are on display. Here you'll see Osteological (Skeletal) Specimens (such as The Mütter American Giant, the tallest human skeleton on exhibit in North America, at 7’6" tall and the Hyrtl Skull Collection, a collection of 139 skulls from Joseph Hyrtl, a Viennese anatomist). Wet specimens include teratological cysts, tumors, and other pathology from every part of the body. Numerous wax models are on display as well as a malignant tumor removed from President Grover Cleveland, the conjoined liver from the famous Siamese twins Chang and Eng Bunker, a piece of tissue removed from the thorax of John Wilkes Booth, and a section of the brain of Charles J. Guiteau, the assassin of President James A. Garfield, to name a few.