An artificial date palm stands as a memorial to Warsaw's Jewish community.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

This 13th century Gothic brick castle is the largest in the world by surface area.

The hollow trunk of this 650-year-old tree was used as a hideout by two Jewish brothers during World War II.

Scotland's only funicular railway is also the United Kingdom's highest.

Spend the night in this formerly abandoned traditional Scottish village.

Where the sleeping monsters of Scotland's oil industry are left to rust.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A collection of the specialized tools used to construct Japan’s beautiful architecture.

One of the world's largest tanks mimics the experience of watching rare whale sharks, giant rays, and deep sea creatures from the ocean floor.

This retro underwater observation tower would make the perfect lair for a sea-loving villain.

Roots and stumps that lay inundated for two millennia are on display in Japan's city of three mysteries.

Elaborate series of tunnels where traces of mass suicide are still visible.

A massive wintry wall of snow up to 66 feet tall flanks a highway through Japan's mountains.

Giant sand sculptures of famous people and places are on display near the Tottori sand dunes.

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

Unusual hexagonal rocks formed by cooling lava named for their resemblance to traditional Japanese tatami mats.

This pond is so stunning it looks like you've stepped into one of Monet's masterpieces.

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

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

Legend holds eating just one of these black eggs can add seven years to one's life.

A massive cave complex boasts some of the clearest water (and most charming bats) in the world.

A beautiful bamboo trail tucked in this famous Japanese Shrine.

Japanese island famous for poison gas and fluffy bunnies.