This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

The Tudor-style cottage in the middle of the square is not quite what it seems.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Charles Babbage's proto-computer, painstakingly brought to life.

This hidden green space is the city's second largest conservatory.

The anatomical-pathological collection of a man who changed surgery.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Rows of stone statues are dressed up to mourn children that are lost before birth.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

This adorable birdlike police box is designed based on a play on words.

This sprawling scenic burial ground is the final resting place of Japan's last shogun.

An ordinary pond with fish from out of this world.

Shrine to Japanese water-goblins, complete with their preserved body parts.

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

Enormous underground chamber built to detect 'ghost particles' of the universe.

A preserved college lock-up that recalls a clubhouse approach to discipline.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This beautiful defunct water tower adds a European flair to a traditional Japanese neighborhood.

These seven moai figures are the world's only sanctioned replicas of the Easter Island originals.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

This active volcano's siren song to suicide jumpers forced authorities to build a fence.

The quintessential Japanese rock garden has existed for more than 500 years.