This massive subterranean fissure is known as the "underground Grand Canyon."

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

A cemetery for Slovenian notables also serves as a popular recreation space.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

The decaying remains of a once-luxurious Soviet spa town.

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

Hundreds of intricately carved Armenian stone crosses can be found within this huge cemetery.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

A refurbished locomotive from a bygone era in the middle of the Jordanian desert.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

This small Slovenian town has become a magnet for microbreweries.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.