A memorial to a goat culled during a foot and mouth disease outbreak guards a series of fantastical caves.

A brisk climb up this solitary peak leads to the origin story of a towering figure in Irish history.

The "Black Arch" guards the entrance to the picturesque Glens of Antrim.

It is said a heartbroken man visited the gap every day to stare blankly out at the sea.

The lake that fills and empties itself at random.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

A peace symbol in Northern Ireland is among the world's largest hedge mazes.

These rusting, skeletal structures are monolithic monuments to Glasgow's industrial past

This once-majestic, now-abandoned Victorian castle has seen better days.

This mountain is one of the largest in Scotland but is better known for its hollow insides.

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

Nestled atop a wind-swept crag in the Scottish Highlands is a lonely memorial to a beloved hiker.

This tiny island is home to the world's largest colony of Northern gannets.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

The building where Mary, Queen of Scots was said to have bathed in white wine.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

Protecting the dead from opportunistic body snatchers.

This single-track road rewards brave drivers with stunning Scottish scenery.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

The final resting place of soldiers' loyal canine companions.