A unique two-level bridge designed to honor a king.

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

A World War II evacuation tunnel turned into a history display of Croatian state and people.

A small self-proclaimed micro-state located on a piece of disputed territory between Croatia and Serbia, near Liberland.

A self-proclaimed libertarian micro-state on a tiny bit of disputed territory between Serbia and Croatia.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

The romantic botanic tunnel feels like a well-kept secret.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

This massive underground salt mine now holds a sci-fi theme park in its depths.

Despite being pillaged and destroyed a number over times down the centuries, this historic church still sort of stands.

A wellspring of natural Viagra found in Bosnia.

The haunting ruins of a military fortress turned astronomical observatory sit on a Sarajevo mountaintop.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

This symbol of Yugoslav liberation decorated with 620 carved heads of mythical creatures is now a forlorn relic of another time.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

This enormous abstract sculpture is part jungle gym, part elaborate noise-making machine.

A war-torn Olympic relic is being overtaken by graffiti and nature.

Two bulls enter. One leaves a champion—but neither loses its life.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.