Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

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

A series of bronze circus performers spread throughout a Slovakian shopping center.

According to a local story, this tree's blossoms signal the end of war.

This small train ride offers stellar views of the Grand Garden Palace.

The place where World War I began.

Oriental bazaar in the heart of Sarajevo.

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

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

One of the largest refracting telescopes in the world, and the first built specifically for studying astrophysics.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

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

The first mosque in the world to receive electricity.

This historic cemetery was inaccessible for several years due to dozens of land mines.

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

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

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

Looming communist pillar with a Czech twist.

Walk through Czech history in Prague's largest graveyard.

This artificial cave looks like something out of a fairytale.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

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