The celebrated eyesore created by starry-eyed sweethearts.

This small, ingenious cannon once helped regulate Parisian life.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Paris' linguistic guide to the international language of, yes, love.

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

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

This bridge was constructed from the rubble of the infamous Bastille.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

What looks like a normal building is really a hollow facade hiding a subway vent.

This hospital helped pave the way for treatment that drove down child-mortality rates in 19th and 20th centuries.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

Heralded as the oldest statue in London.

This former medical factory gives home to cutting edge arts in the shadow of a gas works.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A celebrated bandstand at the center of what was once the worst slum in London.

A wellspring of creativity in an already artsy East London neighborhood.

A building that survived WWII, possibly on the virtue of its name alone.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Preserved behind glass, the ruins of a medieval building used to store human remains.

This pub boasts a curious history and may have inspired a Dickens character.

This 19th-century Turkish bath house survived the Blitz of London and is now an events venue.