A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

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

Gorgeous cave resemble a winter wonderland.

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

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

The king of U.S. high points towers over every other peak on the continent.

A massive underwater sinkhole made famous by Jacques Cousteau.

The only way to visit this old resort hotel is with scuba gear.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

This historic hydroelectric power plant in Japan has been preserved and is open to the public.

The Yonaguni Monument, a natural formation or the Japanese Atlantis?

Sulphuric gases inhabit a beautiful Japanese island.

A steaming, boiling hellscape sources Hokkaido's thermal baths.

The tallest bronze seated statue of the Buddha in Japan.

The 43-mile route crosses through six islands with gorgeous views of the Seto Inland Sea.

Abandoned Japanese ghost town gives a glimpse into what our own metropolises may leave behind.

One of the first hotel rooms in a pod.

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

On Japan's Tashirojima Island, cats are king.

An exquisite tunnel of cascading flowers.

Once the most densely populated place in the world, this island is now a ghost town.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

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

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.