Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

Housed in a 1912 architectural masterpiece, this outlet of the Golden Arches is a real beauty.

An idyllic traditional timber village on a picturesque hill was built for a film.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

Dedicated to a synagogue that was destroyed after having survived World War II.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.

A sculpture of the beloved author surrounded by characters from his fairy tales.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

The abandoned military base looks like a post-apocalyptic wasteland.

The massive white mound and accompanying water terraces are a striking geological oddity.

This colonial fort is an intriguing example of Renaissance military architecture.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

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

Some of the best-preserved specimens of the monumental medieval tombstones found throughout Bosnia and Herzegovina.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

The first mosque in the world to receive electricity.

This beautiful medieval Serbian monastery is home to frescoes, peculiar sculptures, and historical curiosities.

A museum dedicated to the former country.

For decades, Hungary's Communist Party insisted this gulag had never existed.

This building has survived for more than a century and remains virtually untouched.