Rocks that take on the likenesses of several recognizable living entities crowd the Wang dong Rock Quarries.

This 317-ton walkable art installation is an homage to Korea's "City of Steel."

South Korea's largely symbolic, barely used gateway to the North.

Collected from all around Seoul, thousands of secondhand books create this photogenic tunnel.

The site of many tense prisoner exchanges across the Military Demarcation Line between North and South Korea.

Along a rail-biking route, giant insects house a two-story restaurant.

The name of the only golden Buddhist temple in Korea translates as "the temple that protects the country."

Some of the freshest vegetables in Seoul are grown in a subway station.

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

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

The world's longest bridge fountain has hundreds of nozzles that create a beautiful, illuminated spectacle.

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

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

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.

To enter the lower hall of this temple, you must first walk through a dragon.

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

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

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

Geothermal waterfalls in Tuscany.

Renaissance villa and gardens complete with a tormented colossus.

A 16th-century horror show built in a lovely Italian garden.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.