Colorful concentric circles honor a small Croatian town's supposed spot at the nucleus of it all.

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

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

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

A forgotten monument to Yugoslavian freedom.

A tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

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

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

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

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

A tower marking the spot where Yugoslavia began its resistance against the invading Nazis stands neglected, but not quite forgotten.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

Longest fortress system anywhere in Europe.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

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

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

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

A military fort has guarded the surrounding area from this key position since the 13th century.

In 1914, Archduke Franz Ferdinand spent his final night alive at this luxurious hotel.

A tiny chapel and burial site lurk underground in Jajce.

A monument on the pavement marks the spot where two cultures that shaped Sarajevo come together.

A 16th-century mosque rebuilt after wartime devastation.

A small museum built by a family that survived the Siege of Sarajevo.

This unique museum focuses on the Siege of Sarajevo through children's eyes.