A bloody history is captured in this former prison turned museum.

This beautiful arched gate is all that remains of the fortress the ancient mountaintop town of Amadiya once was.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

The supreme shrine of the state.

A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

Amsterdam's Red Light District leaves little to the imagination.

Amsterdam's former hotspot for public executions and dissections.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

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

Carved fountains poignantly placed in parks and in front of special monuments.

Fantastic views and thousands of love locks.

The site of a legendary battle immortalized in medieval literature.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

Featured in one of the most iconic scenes in cinema history.

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

This attraction was abandoned after the Chernobyl disaster.

The biblical sculpture honors those who lost their lives, homes and communities to the Chernobyl disaster.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

The dining hall that nourishes workers in Chernobyl's Exclusion Zone is also open to visitors.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This derelict superstructure was a very important warning system for the Soviet military.

Vibrant street art created with mixed media.