Shells collected from over a hundred different countries line the walls, floors and ceilings of this fantasy museum.

Bioluminescent firefly squid light up this Japanese fishing port.

The magical, mossy forest that inspired 'Princess Mononoke.'

A massive cave complex boasts some of the clearest water (and most charming bats) in the world.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

Unusual hexagonal rocks formed by cooling lava named for their resemblance to traditional Japanese tatami mats.

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.

A remote and slightly overgrown park filled with replicas of world landmarks.

Ruins and statues dot the landscape of this tiny island rich with royal history.

This volcanic island in the Pacific just keeps growing and growing.

The 43-mile route crosses through six islands with gorgeous views of the Seto Inland Sea.

Japan's largest area of "pink moss" turns the hillside bright pink every spring.

This mesmerizingly colorful pond looks like a scene straight out of a fairytale.

A giant rooftop ride with unbeatable views of Matsuyama city, the nearby mountain ranges, and the Inland Sea.

An ingenious solution to a tricky engineering problem, this spiraling bridge takes drivers for a dizzying spin.

Coast along one of Japan’s mountain railways for coveted views of magnificent hydrangeas.

Haunted house kitsch meets Japanese folklore at this theme bar where patrons can “die” and have their own mock funeral.

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

This retro underwater observation tower would make the perfect lair for a sea-loving villain.

A whimsical museum dedicated to the mischievous kappa, a mythical cucumber-loving water sprite.

The world's longest tunnel with an undersea section.

This museum is dedicated to the cultural history of tobacco and salt, once monopolized in Japan.

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

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