What was once the base for Russia's first nature reserve is now a ghost town, right on the shore of Lake Baikal.

Siberian ghost town built by gulag prisoners.

Once a bustling fishing port, this semi-ghost town is now more than 90 miles away from the shore.

Azerbaijani ghost town, decaying after a war left it an armed forces buffer zone.

An abandoned town of skeletal wooden homes.

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

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Spend the night in 1920s Latvia in this historic recreation and movie set.

This abandoned secret city is a crumbling wonderland of Soviet ruins.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

Abandoned medieval hill town.

This ghost town in Belgium will lose its street art when it ceases to exist.

These medieval ruins have survived since the 12th century, even providing shelter from the Nazis.

A Romanesque tower appears when water levels drop.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

Now a pile of ruins and rubble, this was a lovely mountain town as recently as 1960.

A striking symbol of the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.