Unfinished monument to peace between Turkey and Armenia, long divided by a dispute over genocide.

Small church on top of a huge rock column.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

Underground monastery and fortress.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

Please don’t anchor your boat onto the Department of Defense’s underwater data cables.

Where beautiful signs live on forever.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

Sweden's oldest animated sign is still lighting up the skyline today.

No one knows who's responsible for decorating this tunnel with stuffed animals, but the people love it enough to protest their removal.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

This Stockholm light tower can be controlled by anyone with a smartphone.

The internet as provided by a James Bond villain.

In the fictional world of Kcymaerxthaere, standing at this site just outside Vienna, Austria, the sky would have been found beneath your feet.

Apartment complexes built into huge repurposed natural gas tanks.

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

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

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

Op-art architecture designed for happiness.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

A spherical "micro-nation" in the heart of Vienna.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.