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.

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

Black cat statues guard this temple-like Egyptian revival factory.

This former Welsh metal factory is now a lovely abandoned relic but was once one of the industry's world leaders.

The longest and tallest aqueduct in Britain can actually be sailed across.

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

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

Huge winged monument in the United Kingdom.

Recently restored menagerie of Victorian-era beasts.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

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

Semi-precious Blue John stones have been mined in this cavern system for centuries.

The view that inspired the scenes of Dracula's first landing in England.

Three small rooms at the back of the “official” church of London's clowns.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

Picturesque ruins once held off mighty armies.

The last four extravagant street signs of London's historic banking street.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

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

A familiar otherworldly creature guards this 12th-century Scottish abbey.

Giant naked man on a hillside.

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