A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Kawaii meets poisonous at this unique art gallery.

Take a few seconds to look at this abandoned, art-filled station as you pass by on the subway to Ueno.

It's bad manners to eat and drink on the subways of Tokyo, unless the train is this bar. 

A museum dedicated to the history of Tokyo's often-overlooked working-class district.

A cool dive bar, off the beaten track.

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.

The bartenders at this crime-fighting theme cafe are actual private detectives by day.

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

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.”

Japanese company creates clone dolls that reside in the "uncanny valley."

A restaurant modeled after feudal Japan, where the waitstaff are trained as ninjas.

Go through the looking glass in Tokyo's Wonderland-themed shop.

Once a black market electronics marketplace, now an otaku shopper's paradise.

The legendary birthplace of the Japanese maneki-neko is dotted with hundreds of lucky beckoning cats.

Not quite the menace it once was, this monster still has some chops.

Every color in the rainbow awaits.

If Hello Kitty were Mickey Mouse, this would be Disneyland.

A 20-meter (65-foot) robot towers over Tokyo Bay.

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

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