Long abandoned underground complex to keep royals safe from a nuclear war that never came.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.

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

A book bound in the skin of an infamous criminal, along with countless other specimens.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

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

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

This series of Scottish caves has no clear purpose other than baffling historians.

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

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.

As lake waters recede, a German village reemerges after more than a hundred years.

The stones of this formerly witch-obsessed castle were used to build a church.

The ruined remains of the airport Claus von Stauffenberg departed in his failed attempt to kill Adolf Hitler.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

After years of being casually peed on by humans, this tree is peeing back.

A strange rock formation with numerous legends trying to explain it.

The history of German architecture is explored across this fairy-scale mini-city.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

Enter the cabin of a life-sized Hindenburg replica.

Wax models of disease and deformity are on display at this German medical museum.