The heads of two giant mythological water horses honor Scotland's horselord past.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The fountain marks the area where hundreds of accused witches were burned at the stake.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Famously misunderstood wonder of the ancient world

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

A decommissioned tube carriage within a London museum hosts a regular pop-up supper club.

It's good luck to be mocked by this monkey.

This tremendous timepiece was once the largest cuckoo clock in the world.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Site of one of World War I's most horrific scenes.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Legendary site where an evil bishop was devoured by rodents.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.