This charmingly homemade amusement park has been growing for 40 years.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

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

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

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

An unusual round church in London with a Templar past.

The curios of pharmacist and collector Henry Wellcome.

Abstract dinosaur models in London.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

Repository for more than 22 million pickled specimens.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Giant, friendly pelicans in Central London, the most unlikely of places.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

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

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.