Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

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

Largest lake in Great Britain measured by surface area.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

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

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

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Giant, friendly pelicans in Central London, the most unlikely of places.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

Artists and musicians now rule over this former rail station.

A little slice of Japan and its aesthetics in London's Holland Park.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

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

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

London's old-school healing garden.

Scattered throughout London are ancient remnants of the city's former bounding wall.