This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

This 47-story "M" needed 20 years to be completed

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

One of Vienna’s oldest (and perhaps most haunted) alleys, allegedly with a bloody past that gave it its name.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

Baroque celebration of the end of the Great Plague of Vienna.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

Designed as a reminder of one of the darkest moments in Austrian history.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

Op-art architecture designed for happiness.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Physicist’s epitaph provides final confirmation to a career of turmoil.

A memorial to those who donated their bodies to science.

A modern-day Polish explorer's collection of artifacts from around the world

An Italian geologic wonder that served as the inspiration for the landscape of Dante's hell.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

2300-year-old Roman road connecting the empire.

First founded in 1472, this is the oldest bank in the world. Its history may explain why we call financial institutions "banks."

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

A serene memorial that honors the adventurous spirits of climbers who lost their lives in the High Tatras.

These massive moving sand dunes have swallowed an entire village and are still on the run.