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

This odd museum/art gallery embraces the physiological, zoological, and ethnographic side of sex.

One man and his wife have turned a barren Korean island into a fantastical botanical wonderland.

Various forms of phallic art decorate this hill in commemoration of legendary local tragedy.

South Korea's only sex-themed park.

The abandoned hospital whose elaborate ghost stories cover up the dirty truth - an uneventful sanitation issue and other mundane reasons for its demise.

A theme park made of glass, from the gleaming books on the shelves to the crystal fish in the mirror lake.

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

Secret North Korean passage discovered below the world's most dangerous border.

Tracking the 1,500-year history of Korea's star cabbage.

A chilling monument to Korean patriots who resisted the Japanese occupation.

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

Constructed thousands of years ago, these stone circles offer incredible insight into the lives of the people who built them.

A hub of information on tropical diseases and their treatments.

A statue of a mischievous raccoon towers over this city park.

One of the bloodiest and most important battles in Japanese history is recreated with kitschy concrete statues.

This adorable birdlike police box is designed based on a play on words.

This little known mountain has claimed four times as many lives as Everest.

"Singing sands" and the world's largest hourglass reside near Japan's Kotogahama beach.

This historic hydroelectric power plant in Japan has been preserved and is open to the public.

A thick blanket of beautiful pampas grass cloaks this unique Japanese landscape.

The iconic castle that withstood a magnitude 6.2 earthquake has become a symbol of resilience.

More tin toys than you can shake a clapping monkey at.

An eerie maze of industrial factories looks like something out of a dystopian sci-fi.