A five-story homage to tea times past.

Banksy gives themself artistic license with this piece of London street art.

A movable feast that is an East London institution.

"Purveyors of traditional sweets and vintage treats."

The world's oldest model village.

Human-made caves excavated to hide a secret society of wealthy pagans.

This hospital once pioneered the use of electroencephalograms, but fell into maltreatment, abuse, and eventual abandonment.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

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

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

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

Moorish signal station on a stratgic rocky outcrop.

Living towers made of people that are now recognized by UNESCO.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Turntable anonymously received orphans, alms, and groceries.

Village situated on a narrow volcanic escarpment.

Wonderland replication in progress by one persistent man.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.