This mummified mermaid corpse is an aquatic curio that was eventually revealed to be a fake.

Long-secret natural history museum, featuring the skull of a "Terror Bird."

This mysterious underground cave in Shropshire dates back to the 18th or 19th century.

Museum about life, death, and cannibalism in the Stone Age.

Eyam took steps to quarantine themselves and keep the plague from spreading.

A genuine Little Shop of Horrors.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

The oldest inn in England served brew to the crusaders.

A 200-year-old prison that now houses a peculiar crime museum.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Grotto replete with mystical designs laid out in glued shell mosaics.

Rare and wonderfully wormy cadaver art captured in brass for centuries.

Now isolated, this church was once the center of a bustling village that succumbed to the Black Death.

Man-made cave with enigmatic carvings, some say made by the Knights Templar themselves.

Human-made caves excavated to hide a secret society of wealthy pagans.

The world's oldest model village.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

Remnants of a Victorian garden feature sitting in public woodland.

The cedar tree in Highgate Cemetery earned its title by accident.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

A historic arboretum and non-conformist, non-denominational park cemetery.

The final resting place to 300 Victorian-era pets hides inside the city park.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.