Gargoyle head that brings good luck.

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

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

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.'

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.

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

Longest fortress system anywhere in Europe.

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

An ethereal glowing blue ocean cave in Croatia.

This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

A completely underwater art museum sends a stark message about humans' impact on the environment.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

It's known as the "Full Monty school" thanks to its role in the beloved British comedy film.

In the ancient Woolley Woods, an art project promises access to new worlds.

Three memorials honor the victims of the worst sports stadium disaster in Britain.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

In England, an 18th-century water-powered workshop still stands.

The patches of trees pay tribute to Queen Elizabeth II.

There's a strange stone hoodoo towering atop a wooded hillside and no one is quite sure how it got there.