The bones of this aquatic dinosaur turned to opal over the centuries and the beast's remains were almost sold as jewelry.

A boardwalk winds through this sliver of coastal nature hidden within Sydney.

Island wonderland for communist autocrats.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

The Renaissance-era courthouse is a relic from the fortified town's centuries of Venetian rule.

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

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

This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

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

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

Gargoyle head that brings good luck.

The remains of a sunken military ship wreck visible through clear water.

This man-made mound monument was built out of soil from all across the Polish empire.

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

A line of disused military bunkers built to defend against Nazi invasion lies hidden on the outskirts of the city.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.

A unique hotel for the artistic soul.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”