A collection of objects supposedly singed by the hands of souls in purgatory.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

An omelette made with over 1,000 eggs may have been prepared when Holy Roman Emperor Charles V visited this monastery.

The steel cable lets adventurers zoom between two mountain towns at speeds of up to 75 miles per hour.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

An early 20th-century bullring converted into a modern shopping center.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

An architectural oddity hides in plain sight on this iconic London bridge.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

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.