Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A French artist's vague warning hangs over Belleville.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

After local authorities changed the design, the building's architect, Le Corbusier, wanted nothing to do with it.

A slice of central Asia in the middle of Berlin.

This rare archive of original recordings and photos uncovers the early days of hip hop culture.

A provocative museum dedicated to the genre and the harsh realities that inspired its origins.

Jimi Hendrix's legendary recording studio in Greenwich Village.

Its buzzing collection honors vibrator history.

A museum befitting the city responsible for supplying the majority of the world's LSD.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A psychedelic labyrinth on the San Francisco bay.

Experience what life was like in Ireland during the Viking and medieval ages.

A stately palace has been converted into the world's largest cannabis museum.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This museum is dedicated to the most famous Irish writers in history.

Where the leftovers of love affairs can live on forever.

A multimedia experience that chronicles the atrocities of racism.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.