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

The oldest stone house in Paris was built by its most famous alchemist.

Order a boozy baba au rhum at the oldest patisserie in Paris.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

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

Designed by famed 20th-century architect Cass Gilbert, the future of this abandoned 1908 rail station is currently in limbo.

A large boulder marks the place where the island of Manhattan was purportedly "sold" to the Dutch.

This outdoor gallery of sculptures along the East River was once a landfill.

A no-frills cinephile haven known for showing offbeat, underseen films.

The return of something once considered a basic part of life.

A collaborative art project that transformed a neighborhood in NYC's Queens.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

A reminder to choose water over wine since 1888.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

This former crime corner has been turned into an eclectic community center.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Visit the monolithic tomb of America's most famous general.

One of the only single-person private gravesites in New York City.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.