A familiar otherworldly creature guards this 12th-century Scottish abbey.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

An abandoned canal route lies hidden under the streets of Manchester.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

A six-ton wedding present for the King of the Scots.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

This former World War II artillery defense site was built to guard the industrial city of Glasgow.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

Pause in an abandoned hydroelectric station, now overrun with wildlife, to consider a thought-provoking poem.

This graveyard boasts a medley of diverse and imaginative funeral architecture.

The ruins of an abandoned church mingle with the graves at Oaxaca’s General Cemetery.

These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

You can explore the halls of tombs in the abandoned former capital of the Zapotecs.

This cemetery holds the remains of an accused witch and the man that ensured her freedom.

This Edwardian workhouse tells a harrowing story of those who were forced to trade hard labor for lodging.

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.

A look into the life of a Victorian-era prisoner.

The decaying ruins of Wales' first asylum for the mentally ill.

Gargoyle head that brings good luck.

The now-overgrown beach resort was once frequented by Yugoslav military elite.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.