A calico cat named Tama was the wildly popular Super Station Master at this train stop in southeast Japan.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

The most loyal of little dogs, or a Victorian era publicity stunt?

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A network of concealed passageways lies within a busy London Underground station.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Hidden beneath the streets of London is a secret subway that only carried mail.

This tall stone wall with no door and ill-matched windows was built centuries ago, and used as a shelter for domesticated pigeons.

The world's largest collection of witchcraft regalia.

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

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

This Cheshire museum has cuckoo clocks, a rare pipe organ and vintage motorbikes. But mostly cuckoo clocks.

An archive of ceramic eggs painted to record clowns' personal makeup designs.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

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

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

A forgotten "city of water" underneath the famous Trevi district.

A hospital where antique dolls are given new life.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The story behind this uniquely-shaped tower involves ancient empires, local legends, and new words.

A churchyard in Ardsley houses a memorial dedicated to the victims of England’s worst mining disaster.

This beautiful train graveyard is one of the largest collections of steam locomotives in the Mediterranean and Europe.