This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Abstract dinosaur models in London.

A historic arboretum and non-conformist, non-denominational park cemetery.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Remnants of a Victorian garden feature sitting in public woodland.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

The signs of a long buried road can still be found hidden beneath a London sewer grate.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A heartbreaking monument showing the last morning in the life of Jane Griffith.

Abandoned railway line circling the city of Paris.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

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

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.