A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.

A whimsical art tower at a Bavarian brewery includes a grotto for its mythical beer-brewing dwarves.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

You'll find just about anything in this funky Tbilisi flea market.

An old spa town in the mountains of Romania where, according to legend, the great hero Hercules once bathed.

A giant portrait of an ancient king looms over the river.

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

A striking symbol of the Bulgarian capital.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

The first skyscraper to include a Ferris wheel built into the facade.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

Underground monastery and fortress.

Fortified homes of highland warriors that are still in use today.

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

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

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

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

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.