The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

Picturesque ruins once held off mighty armies.

The twists and turns of this serpentine maze are over 170 years old.

One of England's most famous churches hides a pair of little known architectural treasures.

Seat of the Duke and Duchess of Devonshire for centuries.

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

This shell of a historic manor house on the Isle of Wight is said to be the most haunted site on the island.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

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

19th century tunnels burrowed under Liverpool.

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

This Scottish manor house is a lush relic from the life of a literary great.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

Follow the original medieval paths that wind through this intriguing section of the city.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

This antique prison is a tourist attraction with a sordid past.

This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Eyam took steps to quarantine themselves and keep the plague from spreading.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.