An imperial church bombed to ruins during WWII now stands as a jagged memorial.

A monument to the man who almost killed Hitler.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

A towering monument to war, located on a beautifully peaceful hill.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Abandoned railway line circling the city of Paris.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

A hands-off space for graffiti artists to hone and display their skills.

A mechanized clock where a man fights off a dragon, crab, and rooster.

This banal Parisian entranceway is not what it seems.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

A surrealist timepiece by the artist of melting clocks.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.