A dramatically eroding canyon thousands of miles from the desert.

When in Idaho, sleep in a giant potato.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

What remains of the summer palace of King Kamehameha III.

Its collection commemorates the author of the iconic children's book "Heidi."

Home of the future Emperors of Russia.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

An underground city of salt.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

These enlarged egg sculptures represent the native birds of eastern Iceland.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Budapest's Communist-era statues, banished to the suburbs.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This renaissance château was home to an infamous witch hunter who sent a hundred suspected witches to their deaths.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.