This sprawling, Brutalist estate feels like a city within a city.

On the eve of a condemned prisoner's death, this bell rang 12 times outside their cell.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A tiny church on a man-made island in the Adriatic.

An ancient knight and a symbol of the city's freedom.

Gargoyle head that brings good luck.

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

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

A unique museum tells the story of the day-to-day life of World War I soldiers.

The location of the world's first telescope demonstration.

A 11-foot former president stands on a Kosovo street that also bears his name.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

A futuristic, brutalist masterpiece that is also strangely prison-like.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

The ancient tomb acts as a calendar that keeps perfect time.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

The modern birthplace of Irish freedom.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The "feral child" who appeared in Bavaria in the 19th century remains as much a mystery as his unsolved murder.

The oldest housing complex in Riga is a mini timeline of architectural trends.

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.