A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This 700-year-old street food market features baby octopus and soy donuts.

A beautiful bamboo trail tucked in this famous Japanese Shrine.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

Bioluminescent firefly squid light up this Japanese fishing port.

Approximately 300 million years ago, a massive coral reef existed in what is now the largest limestone cave in Japan.

These wondrously illuminated caverns extend under the mountains of the Fukushima Prefecture.

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

Visitors to this park are welcomed by an ancient Japanese megalithic tomb that dates back to the sixth century.

Narrow passes cut out of mountains surround the medieval capital of Japan.

This shrine dedicated to a legendary swordsman has become a pilgrimage site for the ill and infirmed.

This mysterious medieval grotto holds a grid of sacred wells of unknown purpose.

Constructed thousands of years ago, these stone circles offer incredible insight into the lives of the people who built them.

A mysterious set of tunnels carved in the hills of rural northern Kyushu.

One of the world's largest tanks mimics the experience of watching rare whale sharks, giant rays, and deep sea creatures from the ocean floor.

The magical, mossy forest that inspired Princess Mononoke.

This sawtooth mountain range still bears the strangely lovely marks of its history as a medieval quarry.

This pair of small sea rocks has been "wed" using rope and ancient Shinto tradition.

This pond is so stunning it looks like you've stepped into one of Monet's masterpieces.

Legend holds eating just one of these black eggs can add seven years to one's life.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.

One of Japan's most famous sights, the bridge was originally built in 1673.

Hot springs monkey spa in the middle of Hell's Valley.