The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This star-shaped artillery fort protected the mouth of the Thames from the 16th century to the Second World War.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

This mysterious chalk figure of a horse has been recreated and restored for more than a century.

Nearly 2 billion seeds from 38,000 species are stored and processed at this visitable facility in a quiet corner of England.

A Victorian Fort built into the chalky cliffs that overlook the English Channel.

The Neolithic megalith was one of the first archaeological ruins protected by the British government.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

An impressive armored bronze effigy marks the tomb of one of the medieval era's greatest warriors.

This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

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

A set of medieval stained-glass windows tell the gruesome story of a Viking siege.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

One part local history, 99 parts gruesome haunted house.

Also known as Rye Castle, this 13th-century fortification later became a prison and held one of Rye's most famous criminals.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

This oak sculpture at the edge of a small woodland is nine feet tall and shrouded in mystery.

This 2,700-year-old woman is the jewel of the Maidstone Museum's Egyptian collection.

A spectacular cave and a beguiling lake.

Single runway interrupted by a busy road that cuts across its middle.