Home to more than 13,000 pieces of war memorabilia and military equipment.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

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

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.”

After being lost for decades, this striking mural depicting the atomic bomb covers the wall of a busy Tokyo metro station.

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

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

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

A moss-covered statue of a Japanese Buddhist deity stands at a quiet temple in downtown Osaka.

A 14th-century European chapel sticks out of the facade of a Japanese hotel.

The quintessential Japanese rock garden has existed for more than 500 years.

Its humdrum facade only adds to its electrifying appeal: a rooftop with panoramic views of a shapeshifting metropolis.

Buy your fish and have it cooked to order in this bustling, eight-floor seafood market.

The darkest building on Earth was built for the snow-white scenery of the 2018 Winter Olympics.

Plenty of old carney magic still haunts this photogenic amusement park.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

The massive white mound and accompanying water terraces are a striking geological oddity.

The abandoned military base looks like a post-apocalyptic wasteland.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

One of the largest barracks of the Austro-Hungarian monarchy's military is now an abandoned ruin.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.