A 200-year-old collection of medical paraphernalia in a historic house.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

The most visited, and possibly most controversial, museum in Germany.

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

This historic building displays the remains of a victim of the devastating 14th-century plague.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

This hidden green space is the city's second largest conservatory.

The monster at the center of the Darwin Center Spirit Collection.

A naturally mummified 2,000-year-old man.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

Repository for more than 22 million pickled specimens.

One of the world's largest collections of pathological specimens.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Remnants of a Victorian garden feature sitting in public woodland.

Rebuilt remains of a temple to Roman god Mithras.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A shrine to a skeleton saint in the city of angels.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

The restored and active Victorian-era final resting place of San Francisco.