Royals, rebels, and artists have all conversed at this grand 19th-century Viennese coffee house.

Statues of a fire-breather, a clown, and a whole performing troupe celebrate Luxembourg's creative side.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Two standing giants remain as a tribute to Luxembourg's metallurgical past.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

Crop circles inspired this whimsical garden in Germany.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

Dedicated to a song so popular the request to "Play Shoreline" became part of Swedish culture.

This dazzling wooden church was constructed as part of an elaborate peace project after the Thirty Years' War.

A temporary art piece to celebrate LGBTQ Pride is now a permanent part of Stockholm's traffic landscape.

View Japan's most historic city from a cyberpunk walkway suspended 150 feet above the ground.

These whimsical rabbit figures are not as innocent as they might look.

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

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

The castle used by the Danish Royal Family as a hunting retreat.

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

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

The first mosque in the world to receive electricity.

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

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

The place where World War I began.

Oriental bazaar in the heart of Sarajevo.

This massive Trojan ursine was built to be a new tourist symbol for a small Swedish town.

From neon green watering holes to bleached elephant foetuses, this Mozambique museum makes natural history weird.