A sulfuric hellscape in southern Italy.

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

The Pope’s secret escape route.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

A naturally mummified 2,000-year-old man.

Eighty million natural history specimens call this gargantuan museum home.

This clifftop arch is a natural stunner.

The glowing blue Nymphaeum of Emperor Tiberius.

The Emperor Tiberius' palace of debauchery.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

This stunning concert hall has become a symbol of Iceland's national recovery.

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

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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created with the discharge from a geothermal energy plant.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This city square dates back to the Scottish Enlightenment and was home to some of Scotland's brightest minds.

The biggest onshore wind farm in the United Kingdom.

These sculptures of various animals adorn the building that houses one of the capital's least known museums.

This monument is dedicated to a young boy who survived a disaster that forced Edinburgh to reevaluate its building codes.