This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.

The world's first ice hotel is still one of the most elaborate and beautiful.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

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

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

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

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

Cold storage for agricultural biodiversity.

This 19th-century convent is now a flourishing 21st-century hub for art.

A colorful street named for the legendary Australian rock band.

An abandoned jewel of a ballroom on the top floor of Australia’s busiest rail station echoes with the sounds of a bygone era.

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers.

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

This abandoned-looking amusement park is frighteningly open for business.

This enormous photomural pays homage to Vancouver's infamous history of public activism.

At just six feet two inches deep, it is said by Guiness and Ripley to be the world’s narrowest freestanding office building.

The best place for scenic views of the DMZ and North Korea.

This hillside village by the sea has been revitalized by street art.

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

A thriving surf community exists in relative remoteness along the former boundary between North and South Korea.

Japan and South Korea both lay claim to islands inhabited by one woman.

A Korean rock bassist's wild dream has become a reality at this completely insane boutique hotel.