The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

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

An incarceration museum on the spot of possibly the oldest prison in England.

A fantastic castle rumored to be the birthplace of King Arthur.

Eighty million natural history specimens call this gargantuan museum home.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Famously misunderstood wonder of the ancient world

Stonehenge has nothing on Castlerigg’s views.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Dictionary Johnson’s favorite feline.

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

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

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

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

London's old-school healing garden.

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

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

360° views of the city plus five floors of optical illusions and hands-on science.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

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