This quaint mountain pass with centuries-old cobblestones is known as Japan's steepest slope.

An unlikely hit, this museum is dedicated to the inventor of instant ramen and cup noodles.

The Japanese mayo factory famous for its cute mascot.

Near the mouth of the Yodo River, this museum offers visitors six floors of hands-on learning about Osaka's raw sewage.

The Hanshin Expressway goes right through its 5th, 6th, and 7th floors.

A moss-covered statue of a Japanese Buddhist deity stands at a quiet temple in downtown Osaka.

This bathhouse includes an option to soak in radioactive water.

One of the world's largest ancient burial mounds.

This whimsical garbage disposal facility receives around 12,000 accidental tourists each year.

An abandoned giant glass dome sits in the bay in “the Venice of the East.”

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

A Japanese cat island also populated by the descendants of a band of banished samurai.

Largest graveyard in all of Japan surrounds a famous mausoleum.

Descendants of the samurai who guarded Matsusaka Castle during the Edo period still live in these charming historic houses (and visitors can enter one of them for free).

Be a ninja - or just act like one.

The first location of the eventual video game giant.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This crescent-shaped sliver of sand is a magical haven for a herd of feral horses.

A mysterious dark-skinned Christ statue has been this town's religious center for centuries.

Right angles in the forests of Panama.

A massive underwater sinkhole made famous by Jacques Cousteau.

These enigmatic ruins continue to vex archaeologists.

An important Mayan religious and trading center dating back to 200 BC.