A long-abandoned relic of World War II.

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

Derelict chemical plant on the North Sea is a beautiful industrial ruin.

This beautiful example of Victorian engineering is the oldest water-balanced funicular anywhere in the world.

A deserted medieval village where bodies were once mutilated to prevent them rising from the dead.

Britain's tallest megalith towers over the cemetery of a quiet English village.

There are hundreds of secret WWII bases hidden in British forests. Built to fight a Nazi invasion, they remained unknown for decades.

A rotting air force base is now home to rare birds and scarce plants.

When the plague struck York, this stone was used to leave supplies for the sick.

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

An abandoned, desolate train tunnel that was used during World War II.

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

These ruins of a medieval church are full of architectural mysteries.

The ruins of the second of three churches dedicated to the saint in a touristic Scottish town.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

This 13th century castle is chock full of ghosts and impossibly rare cows.

A lone pole once used to display a man's corpse now stands empty, but the memory remains.

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

This Georgian Gothic building was created to shelter and feed deer.

A locomotive made from 185,000 bricks celebrates the town's pioneering railway history.

The train that took the prime minister on his final journey now rests in a British museum.

This industrial chimney looks rather out of place, isolated in the middle of an attractive woodland.