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

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

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

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

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.

A tiny cafe that recreates the Japanese elementary school lunch experience.

Once a black market electronics marketplace, now an otaku shopper's paradise.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The final resting place of 121 victims of the RMS Titanic, 42 of which may never be identified.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

Paris' linguistic guide to the international language of, yes, love.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A morbid piece of memorabilia from the most famous shipwreck in current history is just one of the many poignant artifacts in this Canadian museum's collection.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

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

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