Relics of Australia's convict past, and a modern scene of unimaginable horror.

Aqua white sand highlighted with fiery red rocks.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

One of the best beaches in the entire world.

This peculiar lake of pitch is so thick and viscous that one can walk on its surface.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

An intricately decorated tiny place of worship.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

The only museum with its curator—and her pets—buried inside.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Beautiful views and Roman-style statues on the Italian coast.

Machismo turned on its head: the lady's hand goes to the dude with the bigger brain.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Five candy-colored villages on the Italian Riviera.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Pompeii's less famous neighbor is still revealing her secrets.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Romania's triumphal arch looks out over Bucharest.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

A miniature train-ride through Slovenia's largest cave system.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

A field filled with carved medieval tombstones called stećak.