Gretchen Worden, director of the Mutter Museum Worden has compiled a book of photographs of the museum's collection of human oddities and outdated medical models. The Mutter Museum is in Philadelphia, Pa. It is one of the last medical museums from the 19th century. It originated with the collection of Dr. Thomas Dent Mutter, who gathered unique specimens for teaching purposes. The museum displays many human artifacts, such as a slice of a face, amputated limbs, deformed fetuses and a plaster cast of the conjoined twins Chang and Eng Bunker.