A complicated contraption for telling time by the moon.

Britain’s longest ancient monument, this great 8th century earthwork was built to mark the boundary between what would become England and Wales.

This home of a taxidermy hoarder is among the grandest and most singular of historic English estates.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

The alleged birthplace of Lady Jane Grey, who was executed at age 16 for claiming the throne of England.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

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

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A slightly surreal menagerie of structures that were lovingly spared from demolition and reconstructed in a field.

This ornate English estates "Prodigy House" still bears the cannonball marks of civil war.

This historic Benedictine monastery brews a booze so toxic that it has often been blamed almost singularly for Scottish hooliganism.

This historic abandoned train station looks like a stop for ghost trains.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

This charming railway is one of the oldest and steepest funiculars in England.

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

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

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

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

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A petite castle folly in the English countryside.

A pub that is literally in the middle of nowhere, but continues to do business.