Look closely and you’ll notice that the color changes a third of the way up the tower.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Two stone columns flank the grand Venice square, but there were supposed to be three.

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

Trek up this glacier before it disappears.

Admire dozens of life-size animals made from old scrap metal, nuts, screws, and valves.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Once overlooking the town, this church now resides on a permanent tilt.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

This ornate Weser Renaissance house was also the home of an infamous witch hunter.

Wooden pathways run through this rocky landscape, which legend says was created when a dwarven king pulled down his own castle to stop raiding giants.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Legendary site where an evil bishop was devoured by rodents.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

The real life town from the Pied Piper of Hamelin has a mechanical puppet show that retells the famous story many times a day.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

The prototype for all Nazi concentration camps.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.