This modern labyrinth lies in the shadow of a ruined medieval castle.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

Where the sleeping monsters of Scotland's oil industry are left to rust.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

This Scottish burial tomb once held hundreds of ancient eagle bones.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

A scattered trail of street art adds a pop of color to the city's stark structures.

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

Protecting the dead from opportunistic body snatchers.

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

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

The fountain marks the area where hundreds of accused witches were burned at the stake.

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

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.

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.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Stockholm's deepest subway station is also a stunning ecological wonder.

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.