A rare remnant of an exposition that took place nearby at the end of the 19th-century.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

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

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

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

Now home to a drinking establishment, this building has a macabre history.

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

A roadway designed for a visiting monarch.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

This Scottish graveyard is the final resting place of the man who inspired the character Ebenezer Scrooge.

These characters from a Robert Louis Stevenson novel stand in an unlikely place.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

Inside this cathedral is a shoulder bone belonging to the Patron Saint of Scotland.

A quartet of brightly colored mythical beasts stand sentry at this gateway.

Neon artworks light up this dark Edinburgh tunnel.

A poetic monument to the Scottish Parliament.

This sculpture of disembodied body parts forms a poignant memory of the horrors of World War II.

Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

Many of Edinburgh's more unsavory characters spent their final days behind this door while awaiting their executions.

Another entry into the world of Edinburgh's pop-up artworks.