Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

Concentrated around the Dead Sea, these surprising canyons are filled with coursing water, fish, and even crabs.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

At this museum in Iceland, visitors can sample fermented Greenland shark.

Dine amidst exotic plants at this former royal greenhouse.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

Hackney's newest private museum and natural curiosity shop.

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

An unsanctioned shrine that sprung up outside the late singer's home is causing a stir in London's Highgate neighborhood.

This 1920s Dutch barge is now a floating bookstore.

Museum dedicated to the UK's first charity for abandoned children, with keepsakes of the mothers who left them behind.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

This hidden green space is the city's second largest conservatory.

The monster at the center of the Darwin Center Spirit Collection.

One of the world's largest collections of pathological specimens.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

The anatomical-pathological collection of a man who changed surgery.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.