A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

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

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

This museum glorifies the humble potato.

A museum dedicated to the history and art of staying clean.

Hoax, mistake, or evidence of dinosaurs in human times?

A battle between nature and architecture in the Cambodian jungle.

Khmer Rouge's high security prison.

Built by King Norodom to honor his late father.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Oldest Protestant church in the Middle East, designed to resemble a synagogue.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

This family tattoo parlor has been inking religious pilgrims in the Middle East for 700 years.

An ancient quarry rediscovered by a dog and claimed by biblical kings, a German cult, and the Freemasons.

A "miracle" that seems to produce more holy fistfights than holy revelations.