Chiseled out of a sandstone cliff, one farmer's unfinished art project lies in ruins.

A wooden prison doesn't sound like a good idea, yet this abandoned 1950s detention center still stands today.

One of the few surviving World War II-era air-raid shelters in Tokyo.

A Buddhist temple on an artificial island that houses a monument to the fugu fish.

Nestled amid the trees lies an abandoned funicular railway that dates back to the 1920s.

The site of a famous samurai duel.

The largest archaeological site from the Yayoi period.

A culturally significant rural temple in the beautiful mountains of Itoshima.

Inaccessible by foot, Japan's most secluded train station sits in the middle of nowhere.

It is said that coins washed in the waters here will miraculously multiply.

This massive, beautifully-lit underground quarry leaves visitors in awe.

This battleship of a building was designed by a famed "mad architect."

Next door to Tokyo DisneySea is a giant sculpture created by Taro Okamoto symbolizing the dynamism of life.

This giant statue pays homage to this temple's furry residents who keep the landscape pristine.

The only Buddhist temple in Japan dedicated to breasts.

Tragic reminders of the 1945 firebombing campaign over Tokyo still haunt this bridge.

Although it has never been a secret ninja base, this shrine still has plenty of tricks up its sleeve.

Once the main gateway to Tokyo, sneaking through this checkpoint was a capital offense in feudal times.

A bovine sumo match in which both bulls live to fight another day.

The hometown of a beloved manga artist created a treasure hunt for his popular ghostly characters.

These unconventional "tub boats" let locals row around the island's turbulent coast.

Passengers are not allowed to set foot outside this station, but you can still enjoy spectacular views of the sea from the platform.

Designed by a computer, this intricate network of fluorescent green pipes has taken over a subway station.

Believed to hold the remains of Japan's most infamous fox spirit, this stone is said to kill those who dare approach.