This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

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

The now-overgrown beach resort was once frequented by Yugoslav military elite.

This picturesque medieval monastery guards a small trove of historic treasures.

Dive for drinks at Croatia's first and only underwater winery.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.

Inside this mansion turned museum, the works of prominent Croatian artists are on full display.

This military tunnel dates back to World War II and provides visitors with a little wartime adrenaline.

This Croatian island is for sale but no one is buying due to the dozens of accused Nazi sympathizers who were massacred there after WWII.

Longest fortress system anywhere in Europe.

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

Double spiral staircases are not unheard of, but they are very rare.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

This 15th-century church houses priceless works of art from a range of Croatian artists.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

Gargoyle head that brings good luck.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

Just a few miles from Novalja, a strange geological oddity has left scientists baffled.

This beautiful Croatian fortress is haunted by legends of forbidden love.

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

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

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.