This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

The mark of the Devil's horns on a marble column in Milan.

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

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

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

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A marvel of Byzantine engineering under the streets of Istanbul.

Turkish adventurer antiques in the heart of the Grand Bazaar.

A fountain standing as a testament to a doomed alliance.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Ancient serpentine sacrifice holder that has stood the test of time.

Large miniature theme park with 100-plus models.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

This luxury shopping lane has been protected by its own tiny police force for over a century.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Op-art architecture designed for happiness.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.