The "dragon babies" of southeastern Europe.

A whimsical bridge adorned with decorative dragons.

A miniature train-ride through Slovenia's largest cave system.

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

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

The oldest arboretum on the Dalmatian coast doubles as the gardens of Kings Landing in "Game of Thrones."

An ancient knight and a symbol of the city's freedom.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Longest fortress system anywhere in Europe.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

A musical instrument played by the sea.

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

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

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

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A geological oddity topped with a 2,000-year-old pagan temple.

A stunning architectural yet functional feat, towering over Oslo.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

This floating sculpture of ice is a poignant reminder of nature's power.