A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.

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

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

This third-generation institution is one of the last in London that still cures its own salt beef for epic sandwiches.

This 1920s Dutch barge is now a floating bookstore.

A measuring mishap led to these artificial stone ladies losing their stomachs.

A phantasmagoric tomb honors a Belgian artist-scientist's contributions to the world of spooky entertainment.

This 400-year-old tree is actually an immigrant from North America.

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

This Parisian gem is one of the most incredible ethnographic museums in the world.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The narrowest street in Paris.

The first green space constructed on an elevated viaduct.

After immigrating to Paris in the 1970s, two brothers from Laos built a grocery store empire.

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

A melancholy jester sits on the grave of a famous 20th-century ballet dancer and choreographer.

This lesser-known Frank Gehry building houses a treasure trove of cinema history.

This ruined castle is said to be the legendary keep of a Viking princess.