Inside this church is an obscure piece of art carved by the famous Alice Liddell.

The curios of pharmacist and collector Henry Wellcome.

This knockout museum lies in a sleepy corner of London.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

A 200-year-old collection of oddities and medical paraphernalia.

An encyclopedic collection of mammal penises.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

This collection of bronze hands comes from astronauts, presidents, baseball greats, and more.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

A museum dedicated to the exploring past, present, and future innovations.

A museum within a museum, devoted to history's most questionable medical devices.

A monument to the art of slicing people open.

An original apothecary from 1792.

Brain collection and database that narrows the gap between man and animal.

An astounding collection of medical specimens, including bits of President Lincoln.

A Civil War Museum with some notable medical antiques.

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

In the early 1800s, surgery was also a show.

This collection started by a Cornell professor once held more than 600 human brain specimens, including the one that belonged to its founder.

Astonishing collection of helmets, scientific instruments, and medical models.

Former laboratory of radical psychiatrist Wilhelm Reich.