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

Its town washed away centuries ago, this lonely tower by the sea tells the tale of a mermaid and a curse.

A curious collection dedicated to human and animal anatomy and pathology.

This quirky Korean eatery is built to resemble an equally quirky vintage camera.

This giant radio telescope would be a rusting ruin if it hadn't become such a beloved relic.

A striped 12th-century basilica sits in the countryside of Sardinia.

Stalactites and stalagmites in a beautifully lit cave.

This weird, elephant-shaped rock also hosts two ancient tombs.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

This one-time health resort was used by aristocrats around the world.

This abandoned Slovenian military barracks has become a punky-political art squat.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

A whimsical bridge adorned with decorative dragons.

On the coast of Sardinia, a once-great mining village is finding new life as a coastal resort town.

Packed with geological formations, an ancient river, and taxidermied seals, this overlooked coastal cave system is worth a spelunk.

The supreme shrine of the state.

This pagoda was once the central feature of a Buddhist temple that no longer exists.

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

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

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

South Korea's women of the sea have completely flipped their society's structure by becoming revered fisherwomen.

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.

A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.