The site is dedicated to an investigative journalist whose murder triggered a political uproar that changed Slovakia forever.

A museum dedicated to secret surveillance.

In the heart of Tirana, this underground nuclear bunker has been transformed into a museum.

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

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

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

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

The inverted pyramid design of this station stands out amid Bratislava's urban landscape.

A massive sculpture of an obscure Celtic coin that has become a symbol in Slovakia.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Eighty million natural history specimens call this gargantuan museum home.

The home studio one of Britain's first independent record producers is also the site of a murder-suicide.

This tribute to the fictional detective stands at the famous literary character's address.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

The location of this small park was once the site of an infamous public morgue.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

As seen in the Spice Girls ‘Wannabe’ music video.

This sculpture encompasses the emotion of rail travel.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.