Once a farm where patients tilled the soil, this asylum lost its workforce when overmedicating became common practice.

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

This Victorian graveyard in Leeds is a macabre collection of beautiful tombs and memorials.

At just 25 inches at its narrowest point, it's one of the tightest streets in the world.

A collection of machines designed to break things for science.

Quaint, disturbing, and macabre objects are all on display at this intriguing collection of medical instruments from bygone eras.

It's believed King John of England stayed at this 13th-century castle before riding off to sign the Magna Carta.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

This mysterious hilltop collection of Druid carvings isn't quite what it seems.

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

A monolithic monument in Greater London.

This knockout museum lies in a sleepy corner of London.

A reportedly haunted 14th century church is curiously facing the “wrong direction.”

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

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

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

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

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

A historic house devoted to the teachings of a 1700's prophetess and her mysterious box of revelations.

Unusual British home built to disguise a water tower.

Eighteenth-century home, where Herschel discovered the planet Uranus.

These medieval tunnels provided water to the city above through centuries of civil war and plague.