A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

It’s all about the Benjamins at this Atlanta museum with interactive exhibits.

Tour the sci-fi-esque reality of governmental disease management.

It's unclear what caused the fire that led to this opulent hotel's demise.

The crumbling remains of a once-grand building.

Archaeological site of Iberian people ruins.

An independent naturist colony amidst 1000-year-old ruins.

Two 2,500-year-old Phoenician boats found on the coast of Spain, giving incredible insight into the ancient maritime traders.

In the land of the Light Brigade stands a testament to the Cold War.

Siberian ghost town built by gulag prisoners.

Abandoned waterpark turned counter-culture mecca.

Toxic waste disaster that founded the Superfund program.

A Marxist summer camp full of fantastical statues lies tucked away and forgotten in the forests of Moscow.

Forgotten German bunkers in China create a sharp cultural contrast.

An enormous concrete structure built over a nuclear crater.

The abandoned military base looks like a post-apocalyptic wasteland.

The observation point offers spectacular views of the ruins of an ancient Armenian capital.

The closed and crumbling Francoist luxury resort for workers is still full of life—for now.

Replicas of fossils unearthed during renovation work reveal how this area would have looked millions of years ago.

Not far from Madrid, a set of perfectly preserved trenches date back to the Spanish Civil War.

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

An unexpected ghost village lurks on the southeast coast of Tenerife.