The widest waterfall in Europe is a natural wonder and one of the only places where fish are caught in the air.

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

Surreal works of unreal stone and metal dot the landscape of this Latvian art park.

A railway bridge leading nowhere stands lonely in the middle of a meadow.

Mysterious heaps of stones dot these otherworldly woods.

3,000 market stands in five former Zeppelin hangars.

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

Over time, this castle grew to encompass the entire island.

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

This Latvian shot factory is still used twice a year to manufacture bullets the old-fashioned way.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

Luxury hotel turned into a refugee camp, then turned back into a luxury hotel.

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

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

With over 10,000 lights, this engineering marvel lights up the city after dark.

Unusual building appears to be haphazardly built from randomly piled bricks.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

A museum glorifying the life of Stalin, located in the city of his birth.

Ancient rock-hewn town that witnessed key events of Georgian history.