A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

The last resting place of the famous Native American princess is marked by a haunting monument.

This ancient church, rebuilt at least 3 times, is flanked at all sides by history.

This 15th century pub is one of only two pubs in England situated on consecrated ground.

This ruined 15th-century hermitage is steeped in myth and mystery.

This ornate English estates "Prodigy House" still bears the cannonball marks of civil war.

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

The dramatic remains of an abandoned farmhouse sit high on the edge of a remote hillside.

This amazing 15th-century mural remained hidden in plain sight for centuries.

Built by the patron saint of illusionists this Elizabethan manor house is riddled with secret cubbies for hiding priests.

This skewed English house has looked like it's going to fall over for centuries.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

A remarkable medieval structure born from a 14th-century disaster.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

This open-air mosaic gallery honoring an English artist took hundreds of volunteers more than seven years to create.

A measuring mishap led to these artificial stone ladies losing their stomachs.

This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).