Meet the world's longest tapeworm in a collection that really gets under your skin.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

The original "capsule building" is a masterpiece of Metabolist architecture.

Experience park where visitors are told to expect the unexpected.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

Bioluminescent firefly squid light up this Japanese fishing port.

Hot springs monkey spa in the middle of Hell's Valley.

An exquisite tunnel of cascading flowers.

Thirty architectural gems from the 19th- and early 20th-century Tokyo were restored and relocated to this space.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

The subtle science of a master molecular gastronomist.

All of Chicago's wood-paved streets are long gone but two alleys remain.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

This cemetery is all that remains of a school for "wayward" girls.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

Cold War missile launch site which has been converted to a public park.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

The final resting place of the world's first nuclear reactor.

This overgrown Illinois water park offers a whole new type of adventure.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

North Korea's massive "hotel of doom."