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

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

Nope, not the one in France. The only officially-recognized reproduction of Monet’s garden in Giverny is located in a remote corner of Japan.

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

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

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

A hub of information on tropical diseases and their treatments.

Tokyo’s only Ainu restaurant serves Indigenous food from northern Japan.

This “peasant café” in the middle of Tokyo re-creates the atmosphere of the Japanese countryside.

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

The ruins of Japan’s premier water brothel.

This subterranean spot might be the epitome of Japan's baroque, retro coffee houses.

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

Transport yourself to the 1980s era of video games at this themed restaurant and bar.

Museum showcases Japanese sexuality and some amazing ocean views.

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

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." 

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

A taste of the macabre Tokyo's ritzy shopping district.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

A surreal museum of extraordinary industrial objects.