This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

A private garden of sculptural eccentricities.

The beautiful bas-relief lines a sliver of a 19th-century walking path between two charming French villages.

The castle where the Marquis de Sade lived out his darkest fantasies.

Nearly every wall in this French villa has been "tattooed" by artist Jean Cocteau and other famous painters.

A resort destroyed by a mysterious bombing offers visitors only its remains and the riddle behind it's demise.

Admire endangered plants in a verdant garden that looks straight out of a Monet painting.

A 2017 crowdfunding campaign saved this historic castle from being destroyed.

A neighborhood church's unusual abstract stained glass was the final project of avant-garde artist Jean Cocteau.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

This recessed garden protects thousands of mountain plants by creating its own microclimates.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

Ivy-covered Medieval tunnels cut through this charming town in France's Loire Valley.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

A French valley with forests so lush it was nicknamed "the Small Amazonia of the Pyrenees."

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

The first green space constructed on an elevated viaduct.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

A museum of magic with a Sadist past.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

Abandoned railway line circling the city of Paris.

London's marvelous wildfowl reserve along the Thames.