A geothermal paradise with bubbling mud pools and bright blue hot springs.

Climb right into the heart of this colorful Iceland volcano.

The world's oldest known salt mine.

Walk in the footsteps of the gods and straddle two tectonic plates.

One of few vertical lava tubes in the world accessible by foot.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

A gorgeous, nostalgic café housed in a lofty old warehouse, lit only by petroleum lamps.

The only thing sweeter than the potatoes is the canine proprietor of this roadside stall.

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

A natural wonder with mythological ties to the local Ainu tradition.

This mesmerizingly colorful pond looks like a scene straight out of a fairytale.

This village is home to the largest existing settlement of the Ainu, the Indigenous people of Japan.

Japan's largest area of "pink moss" turns the hillside bright pink every spring.

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

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

Four-story concrete hotel never opened to customers.

A copy of the famous bus used during the filming of 'Into the Wild' is on display at an Alaska brewery.

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

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

This free series of exhibitions honors the fascinating history of the region.

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

A hulking remnant of Alaska's industrial gold mining boom in the 1920s.

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

Massive mounds of golden sand look like a desert landscape randomly plopped in an Arctic forest.