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

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

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

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.

A memorial to the atrocities of the People's Socialist Republic of Albania.

One of the best examples of Art Deco architecture in the United States.

This 1930s-era Route 66 Tulsa landmark was moved, restored, and filled with neon.

Standing at 21-feet tall, this space cowboy adds to the legacy of Route 66's muffler men.

A half-size replica of the World Trade Center towers above Tulsa.

A Route 66 filling station that was designed to resemble the Hagia Sophia, and is now the symbol of an arts district.

These cliff and rock formations are made out of Sioux Quartzite.

A rebuilt Roman city that was once the largest Roman settlement in the region.

This 13th century Orthodox monastery is built right into the Moldovan cliffside.

Seventy-five miles of limestone caves host more than a million bottles of wine beneath a sleepy Moldovan town.

These relics of the city's past now exist as a prominent modern feature.

One of the most notable figures in the Wurstelprater’s history is often assumed to be a fictional character.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

A set of outdoor stairs named in honor of a famous Austrian artist.

A series of bronze circus performers spread throughout a Slovakian shopping center.

A perfectly preserved hill village where the buildings are painted like white lace.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.

A little-visited ghost town state park offers a glimpse into Montana’s "Silver Queen."