A steaming, boiling hellscape sources Hokkaido's thermal baths.

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

The largest volcanic caldera in Japan holds an entire city in its maw.

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

Sulphuric gases inhabit a beautiful Japanese island.

A Japanese corporation has turned this small island town into living modern art gallery.

The tallest bronze seated statue of the Buddha in Japan.

Serving you alcohol with a side of insanity. Also, costumes!

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

The Buddhist temples of Yamadera, built into a mountain side, feature a viewing deck with sweeping views.

Drinkslinger is an unlikely vocation for a Buddhist monk, but at this Tokyo bar the enlightenment is served in a martini glass.

The magical, mossy forest that inspired Princess Mononoke.

One of the first hotel rooms in a pod.

Underground farm located in a former bank vault deep within the bowels of Tokyo's business district.

Japan's corrupt-mental-institution themed restaurant offers diners a chance to eat inside of filthy cells.

Steaming blood-red hot spring from hell.

Nine Gardens in one—with tea service.

The world's largest drain sits below the city of Kasukabe, Japan.

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

Experience park where visitors are told to expect the unexpected.

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

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

Once the most densely populated place in the world, this island is now a ghost town.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.