The world's longest and deepest train tunnel.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

The bears of Bern have been a city highlight for over 500 years.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

Enormous, fluffy dogs frolic around this museum dedicated to a legendary Saint Bernard.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

Large Hadron Collider and the Birthplace of World Wide Web.

Steaming blood-red hot spring from hell.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

Peace Park and the Atomic Bomb Dome.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

Japanese national treasure originally built in 593 CE.

The quintessential Japanese rock garden has existed for more than 500 years.

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

The 10,000 Torii shrine.

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

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

A railway station takeout shop sells boxed meals in containers shaped like trains and snowmen that hold the country’s abundant regional delicacies.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

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

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