This mine was once used to defend the coast from attack during World War II.

A local remembrance for lives lost—a poppy for each—in war more than 100 years ago.

These sculptures honor the knights who once called Carrickfergus Castle their stronghold.

This former ice house dates to the early 19th-century and featured an underground chamber.

A unique tribute to the millions of animals who served and died for the British military.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

This statue includes the molehill that toppled a king.

The bronze uniforms commemorate the vital role of women during World War II.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Paris' linguistic guide to the international language of, yes, love.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This bridge was constructed from the rubble of the infamous Bastille.

The celebrated eyesore created by starry-eyed sweethearts.

The video game-themed street art first popped up in the French city.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.