A statue honors the children who fought Nazis in Poland.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

This 13th century Gothic brick castle is the largest in the world by surface area.

A relic of Poland's shipbuilding past, reborn as a sky-high lookout.

Gdańsk's lion mascot features in a trail of bronze sculptures scattered all across the city.

Modern art commemorates one of the first military actions of World War II.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

The site of the first battle of World War II.

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

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.

Carefully reconstructed after the Bosnian War, this 16th-century bridge stands as a symbol of the country's enduring multicultural heritage.

The first mosque in the world to receive electricity.

The remains of the last Bosnian fortress to fall to the Ottomans are still standing.

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.

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.

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

Oriental bazaar in the heart of Sarajevo.

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

The place where World War I began.