The tallest unclimbed mountain in the world remains poorly charted out of respect for local spirits.

Houses are tucked between, on, and underneath giant boulders.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Peek through a transparent pyramid and drink in the mountain made of books.

A mysterious artist-run cabinet of curiosities and library.

Dictionary Johnson’s favorite feline.

The sign at the garden gate reads: "These Plants Can Kill."

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

On Japan's Tashirojima Island, cats are king.

Hear the quietest sound from across the dome.

A quiet memorial to those who died saving others in the heart of the City of London.

This lab's maddening silence is good for business but bad for sanity.

Paranormal activity on the great lakes.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The tallest stationary dunes on Earth also happen to sing.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

A forest of phallic offerings found in a quiet corner of a hotel car park.

Walk through depictions of the torture inflicted on those who go to Buddhist hell.