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

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

This historical theme park celebrates all things noodle.

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

Every color in the rainbow awaits.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

Bioluminescent firefly squid light up this Japanese fishing port.

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

Every autumn, this hillside is ablaze with red summer cypress.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Thousands of effigies of Buddha watch from caves set high above a legendary river, plus whiskey.

One in a pair of subterranean caves created by an ancient eruption of Mount Fuji.

A massive cave once a secret military base is now home to thousands of bats.

The only natural cave bath in all of Europe.

This sacred cavern, 400 feet deep, is home to millions of bats and an ancient burial ground.

This sacred cave temple is home to thousands of bats and according to legend, a giant snake king.

Wondrous stalactites house thousands of bats in these African caves.

Cave where bat-eating snakes hang down from the ceiling.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

Man-made mineral caves house massive bat colony.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

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

Thousands of bats stream out of caves every night on the edge on Thailand's second largest park.