Hidden under a center for the elderly are the dungeons which were used during the Spanish Inquisition.

The tomb of one of the greatest travelers in history.

This stucco building in North Africa was the first American-owned property on foreign soil.

Local authorities nearly destroyed this mural before a viral video rallied international support to save it.

The last king of Poland was interred in this church nearly 200 years after his death.

This bell stars in a tragic love tale and is said to make wishes come true.

These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

The bomb-ravaged remains of of a colossal Neptune.

Five candy-colored villages on the Italian Riviera.

On the walking path from Monterosso to Vernazza, a small shrine dedicated to feline friends.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

This tiny chapel withstood a massive mudslide and flash flood.