A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A more chill but no less fascinating version of the famous ancient archeological site.

The tallest freestanding structure in the United Kingdom.

What was once England's second-richest abbey is now a haunting ruin.

A 17th-century church is nestled within the walls of a 15th-century ruin.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

Constructed from recycled wrought iron railroad tracks, it's been described as the most beautiful seaside pier in England.

The intended purpose of this unfinished Elizabethan building remains a mystery.

An abandoned 18th century manse looks like something out of an Indiana Jones movie.

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

Picturesque ruins once held off mighty armies.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

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

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

A petite castle folly in the English countryside.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.