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

A sobering scientific reminder of the human damage caused by the advent of the nuclear age.

In a rural Japanese town that has committed to sustainable practices, even the hotel is made from recycled materials.

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

A playing field for a popular French past time can be found tucked away in a quiet corner of Golden Gate Park.

Permanent exhibit reminds visitors of the Exxon Valdez.

This junkyard made over as a theme park is the "Most Alaskan place in Alaska."

Research missiles and rainbow auroras at the world's largest land-based rocket range.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

Don't be a grizzly man. Get personal with Alaska's wild bears from the safety of this conservationist camp.

This ghostly Alaska village still clings to a steep cliffside despite having been abandoned for over 50 years.

A rare kind of blue bear can be found chiefly in the national park that shares their name.

One woman's dream became a train hotel in her backyard.

A trading post in the North Pole where children send letters.

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.

Gorgeous cave resemble a winter wonderland.

The ghostly remains of what was once the world's richest copper mine.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

This whimsical stacked cabin looks like something out of a children's book.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This curio museum seems like the type of place you might find a mogwai or a monkey's paw.

Hundreds of skulls and bones at the largest skeleton museum in the country.

Human skulls and a stuffed goat made into a rocking chair can be found at this strange little store.