The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

Ecuador's largest Incan ruins show evidence of sophisticated irrigation and diplomacy among the ancient builders.

An Ecuadorian haberdashery that sets the record straight about the so-called "Panama" hat.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The most loyal of little dogs, or a Victorian era publicity stunt?

The final resting place of soldiers' loyal canine companions.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

After years of slow decline, a derelict Gothic castle is now being restored to life.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

The castle still holds traces of the abandoned Roman fort it was built atop.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

Crushed coral and crystals give the sand its signature coloration.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

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

This winding road through an Italian canyon may be the most scenic drive in the world.

A dead saint, a deadly poison, and a mysterious holy ooze.