An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Quite simply the largest tree in the world (by volume).

The view that inspired the scenes of Dracula's first landing in England.

Huge winged monument in the United Kingdom.

Glasgow’s piece of the patron saint of love.

The world's oldest surviving music hall was also once a freakshow.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Largest lake in Great Britain measured by surface area.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Hidden in a Scotland museum is a copse of extinct tree stumps.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

A 200-year-old collection of oddities and medical paraphernalia.

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

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

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

The most loyal of little dogs, or a Victorian era publicity stunt?

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

A 18th century graveyard and its astonishing cortege of macabre iconography.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

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

The curios of pharmacist and collector Henry Wellcome.